Symptoms, Causes, Treatment, and Prevention

A heart attack happens when something blocks the blood flow to your heart so it can’t get the oxygen it needs. It’s a medical emergency. Call 911 right away at the first sign of any symptoms. Don’t wait to see if the symptoms pass.

Heart attacks are also called myocardial infarctions (MIs). “Myo” means muscle, “cardial” refers to the heart, and “infarction” means death of tissue because of a lack of blood supply. This tissue death can cause lasting damage to your heart muscle..

Symptoms of a heart attack include:

• Discomfort, pressure, heaviness, tightness, squeezing, or pain in your chest or arm or below your breastbone
• Discomfort that goes into your back, jaw, throat, or arm
• Fullness, indigestion, or a choking feeling (it may feel like heartburn)
• Sweating, upset stomach, vomiting, or dizziness
• Severe weakness, anxiety, fatigue, or shortness of breath
• Fast or uneven heartbeat

Symptoms can be different from person to person or from one heart attack to another.  Women are more likely to have these heart attack symptoms:

• Unusual fatigue
• Shortness of breath
• Nausea or vomiting
• Dizziness or lightheadedness
• Discomfort in your gut. It may feel like indigestion.
• Discomfort in the neck, shoulder, or upper back

With some heart attacks, you won’t notice any symptoms (a “silent” myocardial infarction). This is more common in people who have diabetes.

More than a million Americans have heart attacks each year.  It happens every 40 seconds to someone in the U.S., according to the CDC. 

Heart attacks happen to both men and women. Although they are more likely as you get old, there are many risk factors – including high blood pressure, high levels of LDL (“bad”) cholesterol, diabetes, and whether you smoke – that you can change.

Types of heart attacks: When someone has a heart attack, you may hear some of these terms used:

• STEMI: A heart attack where a coronary artery is completely blocked 
• NSTEMI: A heart attack where a coronary artery is narrowed enough to greatly reduce blood flow but is not totally blocked
• MINOCA: A heart attack in which no blockages are seen in the main coronary arteries.  MINOCA stands for myocardial infarction with non-obstructive coronary arteries. 

A sudden cardiac arrest is actually not a heart attack. You can think of a heart attack as a problem within the heart’s arteries, and a sudden cardiac arrest as the heart’s electrical system suddenly not working right, causing the heart to stop pumping.

Angina also isn’t a heart attack. It’s a symptom, and sometimes it can signal a heart attack. It means chest pain. And while it can happen with a heart attack, it can also happen for other reasons. The sensations may occur with normal activities or exertion but then go away with rest or when you take nitroglycerin.

With angina, you may feel:

• Pressure, pain, squeezing, or a sense of fullness in the center of the chest
• Pain or discomfort in the shoulder, arm, back, neck, or jaw

Call 911 if it gets worse, lasts more than 5 minutes, or doesn’t improve after you’ve taken nitroglycerin. Doctors call that “unstable” angina, and it’s an emergency that could be related to a heart attack that is about to happen.

If you instead have “stable” angina, which is the most common kind, your symptoms usually happen with predictable triggers (such as a strong emotion, physical activity, extreme high or low temperatures, or even a heavy meal). The symptoms go away if you rest or take nitroglycerin that your doctor has prescribed. If not, call 911.

Your heart muscle needs a constant supply of oxygen-rich blood. Your coronary arteries give your heart this critical blood supply. If you have coronary artery disease, those arteries become narrow, and blood can’t flow as well as it should. When your blood supply is blocked, you have a heart attack.

Fat, calcium, proteins, and inflammatory cells build up in your arteries to form plaques. These plaque deposits are hard on the outside and soft and mushy on the inside.

When the plaque is hard, the outer shell cracks. This is called a rupture. Platelets (disc-shaped things in your blood that help it clot) come to the area, and blood clots form around the plaque. If a blood clot blocks your artery, your heart muscle becomes starved for oxygen. The muscle cells soon die, causing permanent damage.

Rarely, a spasm in your coronary artery can also cause a heart attack. During this coronary spasm, your arteries restrict or spasm on and off, cutting off the blood supply to your heart muscle (ischemia). It can happen while you’re at rest and even if you don’t have serious coronary artery disease.

Each coronary artery sends blood to a different part of your heart muscle. How much the muscle is damaged depends on the size of the area that the blocked artery supplies and the amount of time between the attack and treatment.

Your heart muscle starts to heal soon after a heart attack. This takes about 8 weeks. Just like a skin wound, a scar forms in the damaged area. But the new scar tissue doesn’t move the way it should. So your heart can’t pump as much after a heart attack. How much that ability to pump is affected depends on the size and location of the scar.

After a heart attack, you need quick treatment to open the blocked artery and lessen the damage. At the first signs of a heart attack, call 911. The best time to treat a heart attack is within 1 or 2 hours after symptoms begin. Waiting longer means more damage to your heart and a lower chance of survival.

If you’ve called emergency services and are waiting for them to arrive, chew an aspirin (325 milligrams). Aspirin is a potent inhibitor of blood clots and can lower the risk of death from a heart attack by 25%.

Call 911 and start CPR (cardiopulmonary resuscitation) if someone goes into cardiac arrest, which is when the heartbeat has stopped and the person isn’t responsive. CPR doesn’t restart the heart; but it keeps the person alive until medical help arrives.

An easy-to-use device called an AED (automated external defibrillator) is available in many public places and can be used by almost anyone to treat cardiac arrest. This device works by shocking the heart back into a normal rhythm.

Here’s how to use an AED:

1. Check responsiveness

• For an adult or older child, shout and shake the person to confirm whether they’re unconscious. Do not use AED on a conscious person.
• For an infant or young child, pinch their skin. Never shake a young child.
• Check breathing and pulse. If absent or uneven, prepare to use the AED as soon as possible.

2. Prepare to use the AED

• Make sure the person is in a dry area and away from puddles or water.
• Check for body piercings or outline of an implanted medical device, such as a pacemaker or implantable defibrillator.
• AED pads must be placed at least 1 inch away from piercings or implanted devices.

3. Use the AED

For newborns, infants, and children up to age 8, use a pediatric AED, if possible. If not, use an adult AED.

• Turn on the AED.
• Wipe the chest dry.
• Attach the pads.
• Plug in the connector, if necessary.
• Make sure no one is touching the person.
• Push the “Analyze” button.
• If a shock is advised, check again to make sure no one is touching the person.
• Push the “Shock” button.
• Start or resume compressions.
• Follow AED prompts.

4. Continue CPR

• After 2 minutes of CPR, check the person’s heart rhythm. If it’s still absent or uneven, give them another shock.
• If a shock isn’t needed, continue CPR until emergency help arrives or the person begins to move.
• Stay with the person until help arrives.

Emergency medical workers will ask you about your symptoms and do some tests.

Tests to diagnose a heart attack

Your doctor may order tests, including:

EKG: Also known as an electrocardiogram or ECG, this is a simple test that records the electrical activity of the heart. It can tell how much your heart muscle has been damaged and where. It can also monitor your heart rate and rhythm.

Blood tests: Several blood tests, often done every 4 to 8 hours, can help diagnose a heart attack and spot any ongoing heart damage. Different levels of cardiac enzymes in your blood can indicate heart muscle damage. These enzymes are usually inside the cells of your heart. When those cells are injured, their contents – including the enzymes – spill into your bloodstream. By measuring the levels of these enzymes, your doctor can find out the size of the heart attack and when it started. Tests can also measure troponin levels. Troponins are proteins inside heart cells that are released when the cells are damaged by the lack of blood supply to your heart.

Echocardiography: In this ultrasound test, sound waves are bounced off your heart to create images. It can be used during and after a heart attack to learn how your heart is pumping and what areas aren’t pumping the way they should. The “echo” can also tell whether any parts of your heart (valves, septum, etc.) have been injured in the heart attack.

Cardiac catheterization: You might need cardiac catheterization, also called cardiac cath, during the first hours of a heart attack if medications aren’t helping with the ischemia or symptoms. The cardiac cath can give an image of the blocked artery and help your doctor decide on a treatment.

In this procedure, a catheter (a thin, hollow tube) is inserted into a blood vessel in your groin or wrist and threaded up to your heart. Dye is used to highlight your heart’s arteries. Your doctor can then identify blockages, which are often treated with angioplasty or stents to open the artery and restore blood flow. Your doctor may do several tests to assess your heart. Intravenous blood thinner is an option to open the artery if cardiac catheterization is not available.

Stress testing: Your doctor can do a treadmill test or a radionuclide scan to check whether other areas of the heart are still at risk for another heart attack.

A heart attack is a medical emergency that needs care right away to prevent permanent heart damage or death. Treatment often begins in the ambulance if you called 911, or in the emergency room if someone else took you to the hospital.

What drugs are used to treat a heart attack?

At the emergency facility or hospital, you’ll quickly get drugs to prevent further blood clotting in the heart and ease the strain on the heart. Drug therapy aims to break up or prevent blood clots, stop platelets from collecting and sticking to the plaque, stabilize the plaque, and prevent more ischemia.

You should get these medications as soon as you can (within 1 or 2 hours from the start of your heart attack, if possible) to limit heart damage.

Drugs used during a heart attack may include:

• Aspirin to stop blood clotting that may make the heart attack worse
• Other antiplatelet drugs, such as clopidogrel (Plavix), prasugrel (Effient), or ticagrelor (Brilinta) to stop clotting
• Thrombolytic therapy (“clot busters”) to dissolve blood clots in your heart’s arteries
• Any combination of these

Other drugs given during or after a heart attack help your heart work better, widen your blood vessels, lower your pain, and help you avoid life-threatening heart rhythms.

Are there other treatments for a heart attack?

Treatment may also include a procedure to open the blocked arteries.

Cardiac catheterization: In addition to making a picture of your arteries, cardiac catheterization can be used for procedures (such as angiography or stent) to open narrowed or blocked arteries.

Balloon angioplasty: This treatment can be done, if needed, during cardiac catheterization. A balloon-tipped catheter (thin, hollow tube) is inserted into the blocked artery in the heart. The balloon is inflated gently to press plaque outward against the walls of the artery, to open the artery and improve blood flow. Most of the time, this is not done without putting in a stent.

Stent placement: In this procedure, a small tube is inserted through a catheter into a blocked artery to “prop” it open. The stent is usually made of metal and is permanent. It can also be made of a material that your body absorbs over time. Some stents have medicine that helps keep the artery from getting blocked again.

Bypass surgery: You might have bypass surgery in the days after a heart attack to restore the blood supply to your heart. Your surgeon will reroute blood flow around your blocked artery, usually using a blood vessel from your leg or chest. They can bypass multiple arteries.

What happens in the coronary care unit (CCU)?

If you’ve had a heart attack, you’ll usually stay in a CCU for at least 24 to 36 hours. Once past the critical phase, you’ll continue to get a variety of drugs, including:

• Beta-blockers to slow the heart
• Nitrates to increase heart blood flow
• Blood thinners such as aspirin, Brilinta, clopidogrel, Effient, heparin, or Plavix to prevent further clotting
• ACE inhibitors to help the heart muscle heal
• Statins – cholesterol-lowering drugs such as atorvastatin and simvastatin – to help the heart muscle heal and lower the risk of another heart attack

While you’re in the hospital, medical staff will constantly monitor your heart by EKG in case you get unusual heart rhythms.

Some people may need to be fitted with a pacemaker, a battery-powered device to help keep a steady heart rhythm. If you have a dangerous arrhythmia known as ventricular fibrillation, medical providers will give an electric shock to your chest.

Treatments don’t cure coronary artery disease. You can still have another heart attack. But you can take steps to make it less likely.

The goal after your heart attack is to keep your heart healthy and lower your risk of having another heart attack. Take your medications as directed, make healthy lifestyle changes, see your doctor for regular heart checkups, and consider a cardiac rehabilitation program.

Why do I need to take medications after a heart attack?

You might take certain drugs after a heart attack to:

• Prevent blood clots
• Help your heart work better
• Prevent plaques by lowering cholesterol

You might take medications that treat an uneven heartbeat, lower your blood pressure, control chest pain, and treat heart failure.

Know the names of your medications, what they’re used for, and when you need to take them. Go over your medications with your doctor or nurse. Keep a list of all your medications, and take it to each of your doctor visits. If you have questions about them, ask your doctor or pharmacist.

It sounds obvious, but don’t skip your medications. Many people don’t take their medications the way their doctor told them to. Figure out what keeps you from taking your medicine – it could be side effects, cost, or forgetfulness – and ask your doctor for help.

What lifestyle changes are needed after a heart attack?

To keep heart disease from getting worse and to head off another heart attack, follow your doctor’s advice. You might need to change your lifestyle. Here are some changes you can make that can cut your risk and put you on the path to a healthier life:

Stop smoking: Smoking dramatically raises your risk of both heart attacks and strokes. Talk to your doctor about how to quit. You’ll also be doing your friends and family a favor, since secondhand smoke can also lead to heart disease. You also can call the hotline 800-QUIT-NOW (800-784-8669) and visit the smokefree.gov website.

Keep a healthy body weight: If you’re overweight or obese, you don’t have to get thin to reduce your risk for a heart attack or stroke, but your doctor may recommend some weight loss. If you lose 5% to 10% of your weight, you’ll improve your cholesterol numbers and lower your blood pressure and blood sugar levels.

Follow an exercise plan: Moderate physical activity lowers your chances of a heart attack. It also can reduce your blood pressure and LDL or “bad” cholesterol, raise your HDL or “good” cholesterol, and help you stay at a healthy weight.

Aim for 30 minutes of exercise that gets your heart pumping at least 5 days a week. Brisk walking or swimming are some good choices. On the other 2 days, do strength training, like lifting weights. If you’ve got a tight schedule, break your exercise routine into small chunks.

Eat a heart-healthy diet: Fill your plate with different kinds of fruits, veggies, beans, and lean meats, such as poultry without the skin. Also up your intake of whole grains, like oatmeal, quinoa, and brown rice, and of fish, especially those with omega-3 fatty acids, such as salmon, trout, and herring.

Avocados, olive oil, and flaxseeds also have omega-3s, as do some nuts and seeds. Fat-free or low-fat dairy products such as milk, yogurt, and cheese also are better choices for your heart health than higher-fat versions. 

Cut back on unhealthy foods: Stay away from processed or prepared foods that often are high in salt and added sugar. They’re also filled with preservatives. Avoid fatty beef, butter, fried foods, and palm oil. All are high in saturated fats.

Skip sugary drinks like sodas and fruit punch, which can lead to weight gain. So can packaged baked goods such as cookies, cakes, and pies. They are high in trans fats and can raise your cholesterol levels.

Limit alcohol: If you don’t drink already, don’t start. If you do drink, limit how much you drink. The recommendation is no more than one drink a day if you are a woman and no more than two a day if you are a man. Drinking raises your heart rate and blood pressure. It also raises the level of fat in your blood and can cause weight gain.

Get regular checks of your cholesterol, blood pressure, and blood sugar (glucose) levels: If you have diabetes, make sure it’s controlled. Keeping a check on these numbers can help you be more aware of the changes you need to make to keep these levels within normal limits.

Control stress: You may feel anxious or frustrated at times. Open up to your family and friends about what’s going on. Support groups can help you learn how others adjusted to life after a heart attack or stroke.

You may want to talk to a mental health professional or ask your doctor about a stress management program. You can also reduce stress with plenty of physical activity and mind-body practices like meditation.

Pay attention to your symptoms: Don’t just hope they’ll go away. See your doctor if you feel anything unusual, like shortness of breath, changes in your heart rhythm, or extreme tiredness. Also, watch for pain in your jaw or back, nausea or vomiting, sweating, or flu-like symptoms.

Why should I take part in cardiac rehabilitation?

If you’ve had a heart attack or have been diagnosed with heart disease, your doctor may recommend cardiac rehabilitation. You’ll work with a team of experts to boost your health and avoid future problems.

Your team may include doctors and nurses, as well as specialists in exercise, nutrition, physical therapy, occupational therapy, and mental health. They’ll set up a program to fit your needs. They can also help you make changes in your daily life. If you stick with it, it can make a big difference in your recovery and overall well-being.

When will I see my doctor again after I leave the hospital?

Make a doctor’s appointment for 4 to 6 weeks after you leave the hospital following a heart attack. Your doctor will want to check your recovery. You might need an exercise stress test on a regular basis. These tests can help your doctor find or slow blockages in your coronary arteries and plan your treatment.

Call your doctor if you have symptoms, such as chest pain that happens more often, gets stronger, lasts longer, or spreads to other areas; shortness of breath, especially while you’re resting; dizziness; or uneven heartbeats.

Nausea | Vomiting | MedlinePlus

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What are nausea and vomiting?

Nausea is when you feel sick to your stomach, as if you are going to throw up. Vomiting is when you throw up.

What causes nausea and vomiting?

Nausea and vomiting can be symptoms of many different conditions, including:

• Morning sickness during pregnancy
• Gastroenteritis (infection of your intestines) and other infections
• Migraines
• Motion sickness
• Food poisoning
• Medicines, including those for cancer chemotherapy
• GERD (reflux) and ulcers
• Intestinal obstruction

When do I need to see a health care provider for nausea and vomiting?

Nausea and vomiting are common. They are usually not serious. However, you should contact your health care provider immediately if you have:

• A reason to think that your vomiting is from poisoning
• Vomited for longer than 24 hours
• Blood in the vomit
• Severe abdominal pain
• Severe headache and stiff neck
• Signs of dehydration, such as dry mouth, infrequent urination or dark urine

How is the cause of nausea and vomiting diagnosed?

Your health care provider will take your medical history, ask about your symptoms and do a physical exam. The provider will look for signs of dehydration. You may have some tests, including blood and urine tests. Women may also have a pregnancy test.

What are the treatments for nausea and vomiting?

Treatments for nausea and vomiting depend on the cause. You may get treatment for the underlying problem. There are some medicines that can treatment nausea and vomiting. For severe cases of vomiting, you may need extra fluids through an IV (intravenous).

There are things that you can do to feel better:

• Get enough fluids, to avoid dehydration. If you are having trouble keeping liquids down, drink small amounts of clear liquids often.
• Eat bland foods; stay away from spicy, fatty, or salty foods
• Eat smaller meals more often
• Avoid strong smells, since they can sometimes trigger nausea and vomiting
• If you are pregnant and have morning sickness, eat crackers before you get out of bed in the morning

• Nausea and Vomiting

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• Nausea and Vomiting

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• Upper GI Endoscopy

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• Antiemetic Medicines: OTC Relief for Nausea and Vomiting

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• Ginger

  (National Center for Complementary and Integrative Health)

• BRAT Diet: Recovering from an Upset Stomach

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• Dehydration

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• Indigestion

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• Cyclic Vomiting Syndrome

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• ClinicalTrials. gov: Nausea

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• Article: Prolonged usage of fosaprepitant for prevention of delayed chemotherapy-induced nausea and. ..

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• Drinks to Prevent Dehydration When Your Child is Vomiting

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• Infant Vomiting

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• Nausea and Vomiting in Infants and Children

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• Vomiting (For Parents)

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when is it really dangerous? What to do with bouts of vomiting? When should you see a doctor for vomiting?

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Vomiting is a reflex eruption through the mouth of the contents of the stomach, and sometimes the duodenum.

Vomiting

The gag reflex is quite complex – it involves various muscle groups. It is controlled by the vomiting center located in the brain stem. By its very nature, vomiting is a mechanism by which the body defends itself against poisoning. Normally, vomiting is a reaction to the ingestion of toxic substances into the gastrointestinal tract or simply something that cannot be digested – for example, too fatty foods. Therefore, after an attack of vomiting, a person often feels relieved: the body has cleansed itself.

However, the intoxication that caused vomiting may have an internal source, that is, be the result of any pathology or disease. It is also possible that the irritation of the nervous system, leading to vomiting spasms, is not related to the state of the stomach at all. This makes one perceive vomiting as a very serious, and even formidable symptom. An attack of vomiting is almost always a sufficient reason to see a doctor. In case of recurring attacks, you should definitely consult a doctor!

Causes of vomiting

In most cases, vomiting is due to irritation of the receptors of the stomach or, in medical terms, has a visceral origin. The cause is most often acute or chronic diseases of the stomach itself (acute food poisoning, gastritis, stomach ulcers, food allergies). Also, the receptors of the stomach can also respond to diseases of other organs – the gallbladder, uterus, heart (vomiting is included in the complex of possible symptoms of myocardial infarction).

Vomiting can also be of central origin, that is, caused by pathologies of the central nervous system (brain), such as meningitis, encephalitis, trauma, and brain tumors. Quite often, vomiting is observed with migraines. Problems in the inner ear can also lead to vomiting (in which case, vomiting may be accompanied by dizziness). With excessive irritation of the receptors of the inner ear (during motion sickness), even a healthy person can vomit, especially if the vestibular apparatus is not trained. Sometimes vomiting is caused by an emotional disorder (stress) or is a reaction to something that causes extreme disgust (conditioned reflex vomiting).

Irritation of the vomiting center can be caused by toxic substances carried by the blood stream ( hematogenous toxic vomiting). Toxic substances can enter the body from the outside (for example, chlorine or carbon monoxide – by inhalation), or can be produced in the body itself – as a result of impaired liver or kidney function.

Vomiting and other symptoms

Usually vomiting is preceded by nausea, because, in fact, vomiting is the resolution of nausea, its logical conclusion. The fact that nausea turned into vomiting indicates the severity of the pathological process. Vomiting spasms can be observed against the background of elevated temperature, accompanied by diarrhea. In the vomit, in addition to food debris, gastric juice and mucus, bile, blood, and pus may be present.

Repeated, periodically recurring and indomitable vomiting exhausts and dehydrates the body, leads to a violation of mineral metabolism and acid-base balance.

Diarrhea and vomiting

Vomiting and fever

When vomiting scares

Any bout of vomiting is a very unpleasant experience. Even if a person experiences relief with the resolution of an attack, vomiting itself is perceived as an extraordinary event, which should not normally be. The shock of the body, domestic and social inconvenience – all this makes vomiting a process of a different order compared to other reflex actions, such as coughing or sneezing. We always react sharply to vomiting (we do not leave it unattended), and rightly so.

However, in some cases, vomiting worries us especially strongly. Such is vomiting of bile , vomiting of blood . Parents are worried about cases of vomiting in a child . Quite often, vomiting is observed during pregnancy , attracting increased attention.

These cases should be mentioned separately:

Vomiting of bile

Vomiting blood

Vomiting during pregnancy

Child vomiting

What to do if you are vomiting

What to do if you are vomiting

Because anyone can experience vomiting, it is helpful to know how to prevent vomiting, what to do during and immediately after an attack, and when to see a doctor.

Nausea is a precursor to vomiting. If you feel sick, try opening a window (increase the oxygen supply), drinking some sweetened liquid (this will soothe the stomach), sitting or lying down (physical activity makes nausea and vomiting worse). You can dissolve a tablet of validol. If you get sick on the road, take candy with you and dissolve on the way. This will help prevent vomiting.

What to do when vomiting

During an attack, it is important to exclude the ingress of vomit into the respiratory tract. The patient during vomiting should never lie on his back. Do not leave young children unsupervised if they may vomit. An elderly or weakened person must be helped to turn on his side, head to the edge of the bed, put a pelvis in front of him.

What to do after vomiting

After an attack, rinse your mouth with cold water. If the patient himself cannot do this, it is necessary to moisten a piece of gauze in a soda solution and wipe his mouth.

Immediately after the attack, you can drink only a few sips of water, and then if there was no blood in the vomit. You can drink properly only after 2 hours, and eat only 6-8 hours after the attack. Food should be dietary, sparing; best of all – porridge on the water, rice, low-fat soup.

With repeated attacks of vomiting, dehydration of the body is possible. Therefore, it is necessary to drink a special solution that restores the water-electrolyte and acid-base balance.

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When should you see a doctor if you vomit?

Vomiting – in many cases, a sign that the body is experiencing serious problems and needs to be cleansed, and therefore, most likely, in treatment. If the disease is accompanied by vomiting, this usually indicates that the disease is quite severe.

If the attack of vomiting was one-time and there is reason to believe that it was caused by overeating, motion sickness, alcohol poisoning or stress, there is no direct need to see a doctor. In all other cases, a doctor’s consultation is necessary. Especially if the attacks are repeated for two days or more, as well as in the presence of diabetes or other chronic diseases.

Sometimes emergency care is required for vomiting. You need to call an ambulance if:

• vomiting accompanied by persistent or severe abdominal pain;
• there are repeated bouts of vomiting after a head injury;
• with vomiting observed dehydration, dry mouth, increased urination;
• with deterioration of mental and functional activity in the elderly;
• there is blood in the vomit (for example, impurities in the form of “coffee grounds”).

Which doctor should I contact if I vomit?

Complaints of nausea and vomiting are usually addressed to a gastroenterologist or general practitioner (general practitioner, family doctor or pediatrician). In case of nausea and vomiting during pregnancy, you should contact your gynecologist.

Do not self-medicate. Contact our specialists who will correctly diagnose and prescribe treatment.

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Nausea and Vomiting – KDLmed

Nausea is a painful sensation in the stomach and throat that may be accompanied by weakness, increased salivation, sweating and often precedes vomiting.

Vomiting is a sudden involuntary emptying of the stomach.

Nausea and vomiting are symptoms of many diseases and conditions, from pregnancy to serious pathologies such as brain tumors, epilepsy and myocardial infarction.

In most cases, nausea and vomiting are not harmful to the body. However, prolonged vomiting, often in combination with diarrhea, can lead to severe dehydration and, as a result, disruption of the cardiovascular system, brain, kidneys and other organs. This is especially true for young children, who themselves cannot control the manifestations of dehydration. Pregnant women may experience so-called excessive vomiting of pregnant women, which disrupts the balance of electrolytes in the blood and threatens the life of the mother and fetus.

There are medicines available that can reduce nausea. However, in any case, it is necessary to find out its cause.

Synonyms English

Nausea, emesis, vomiting, vomitus, distaste, sickness, retching, bdelygmia.

Symptoms

The duration of nausea and vomiting, the timing of their onset, and the effect of eating on them depend on their underlying cause. For example, nausea and / or vomiting almost immediately after eating may indicate gastritis (inflammation of the gastric mucosa), within 1-8 hours after eating – poisoning.

Prolonged vomiting may cause signs of dehydration:

• dry mouth;
• thirst;
• sunken eyes;
• infrequent urination, decreased amount of urine, dark colored urine;
• in children, the fontanel can sink – a soft area at the junction of the child’s cranial bones, which normally closes by 12-18 months of age.

There are also a number of symptoms that are signs of dangerous, life-threatening conditions and require immediate medical attention:

• admixture of blood in vomit;
• severe headache, confusion, impaired consciousness;
• abdominal pain;
• signs of dehydration;
• shortness of breath;
• Vomiting that lasts longer than a day (for children, if it lasts for several hours, especially if accompanied by diarrhea and fever).

Vomiting and nausea usually resolve within 6-24 hours. If these symptoms recur within a week and if you suspect a possible pregnancy, you should also seek medical advice.

General information about the disease

Nausea occurs when there is a decrease or absence of gastric peristalsis with simultaneous tension of the initial part of the intestine – the duodenum, which is accompanied by the reflux of part of the contents of the duodenum into the stomach. With vomiting, there is a strong contraction of the diaphragm and muscles of the anterior abdominal wall, holding the breath and a sharp release of the contents of the stomach into the esophagus and further into the oral cavity. This may be accompanied by increased salivation, sweating, weakness, dizziness.

Specific centers in the brain are responsible for the occurrence of nausea and vomiting, which receive information from the organs of the gastrointestinal tract, vestibular apparatus, other parts of the brain, kidneys, and also react to the chemical composition of the blood, including toxins, drugs , metabolic products. These centers trigger and control the activity of the muscles involved in nausea and vomiting.

Causes of nausea and vomiting may be as follows.

• Irritation of the gastric mucosa. In this case, nausea and vomiting are protective reactions of the body aimed at eliminating the damaging agent.
• Intestinal infections – rotavirus, salmonellosis, botulism, dysentery, etc. – in addition to nausea and vomiting, are accompanied by abdominal pain, fever. The most common infection is rotavirus. It is especially common among children attending kindergartens and nurseries, and occurs with nausea, vomiting, diarrhea, which usually lasts 1-2 days. After the disease, immunity is formed.
• Food poisoning. In this case, vomiting occurs within a few hours after eating.
• Gastric ulcer – damage to a section of the gastric mucosa due to the action of gastric juice. May be accompanied by belching, heartburn, abdominal pain.
• Gastroesophageal reflux disease is a chronic disease in which there is a regular reflux of stomach contents into the esophagus with damage to the mucous membrane of the esophagus by acidic gastric juice.
• Irritation of the stomach by other substances: alcohol, nicotine, aspirin.
• Effects on the central nervous system and vestibular apparatus. In this case, nausea and vomiting are caused by irritation of certain centers of the brain.
• An increase in intracranial pressure in brain injuries, tumors, infections (meningitis, encephalitis) may be accompanied by nausea and vomiting.
• Stimulation of the vestibular apparatus. It includes labyrinthitis (inflammation of the inner ear), motion sickness in transport, and other diseases and conditions in which excessive irritation of the balance organ occurs.
• Headache, especially in migraine. Migraine is a neurological disease characterized by severe headache, usually on one side, which may be exacerbated by bright lights or loud noises and accompanied by nausea and vomiting.
• Sunstroke. A condition that occurs when the head is exposed to the sun for a long time. Often found in children.