The doctor said that blood was drawn on an empty stomach, and if you take medicine, is it considered

Analysis: Hello; Fasting is the case in the morning when you do not eat.

Guidance: You can tell the doctor who examined you that you have eaten, and there are many items that have eaten and the results are inaccurate. 6 hours after eating should be considered fasting.

Condition analysis: Hello, it is recommended that it is better to adhere to this situation on an empty stomach, guidance:

It is recommended to stick to it on an empty stomach early tomorrow morning, so that the results are accurate, and I wish you good health!

Taking medicine is not considered fasting.

In general, fasting is defined as more than 8 hours after a meal and 8-15 hours without any caloric intake. Fasting blood draw does not mean not eating or drinking water the night before the blood draw, but should maintain the usual lifestyle and eat a normal light diet.

It is best not to exercise vigorously, do not smoke, do not drink alcohol, do not drink coffee, do not drink tea, do not take drugs that affect the liver and kidneys, and rest as soon as possible. On the morning of the blood draw, skip breakfast, drink little or no water, do not do morning exercise, and calmly go to the hospital to wait for blood collection.

The items that require fasting blood sampling mainly include liver function, kidney function, fasting blood glucose, blood lipids and other examination items, as well as blood rheology examination, prenatal antibody screening, etc. The best time for a venous blood test is between 7 a.m. and 10 a.m., and the time is to refrain from fasting and milk (including snacks) before the blood draw, but a small amount of water can be drunk.

In general, it's okay to drink a small amount of water, but don't eat.

But it is recommended that you ask the doctor directly next time.

Drinking water is no longer considered fasting, so you must not drink water when taking blood, so the test is not accurate.

Of course yes, as long as you don't eat. But you don't drink drinks or anything, just drink a little plain water.

Of course, after drinking water, it is not considered an empty stomach, so do not drink water or eat, otherwise you will not be able to draw blood at all, and you will waste your time.

Physical examination is very necessary for all of us, especially the middle-aged and elderly, because people will have various diseases when they reach middle age, at this time it is best to have an annual physical examination, so that they have a general understanding of their body, what diseases can also be compared to the fiber cover**, the physical examination is generally to draw blood, that blood to draw fasting? What are the effects of having blood drawn after eating?

1. Do I have to have an empty stomach to draw blood?

Blood draws do not have to be on an empty stomach.

Whether to take blood on an empty stomach is for specific examination items, such as the routine blood examination in the hospital, the examination items are mainly related to the counting of various cells and immune proteins, and it does not matter whether you eat or not without checking blood lipids and blood sugar.

2. Is it better to have an empty stomach or eat and draw blood

It is good to draw blood on an empty stomach.

For the accuracy of the examination, it is best to draw blood on an empty stomach, because the standard of many examination items is determined by the measurement of fasting blood draw, and the blood sugar and blood lipids in the blood after eating are high, and the blood test results may affect the accuracy of the examination items.

3. Which examinations require fasting blood draw

In the medical mask fasting blood glucose, blood lipids, renal function (mainly blood urea and blood uric acid), liver function (mainly bilirubin, aminotransferase), blood viscosity, fasting examination and other functional tests of the blood test must be strict fasting, and coagulation function, glycosylated hemoglobin, blood routine, blood sedimentation rate, immunity all laboratory test items such as hepatitis B trilineage, hepatitis full set, various hormones, myocardial markers, thyroid function, tumor markers, autoantibodies, rheumatoid and other examinations require patients not to eat high-fat food. Not explicitly asked for fasting.

4. Which examinations require blood to be drawn after meals

There are pre-meal blood test items, and there are also some tests that need to be eaten, such as half-and-half after meals, 1, and hourly blood sugar, C-peptide, insulin, etc., which need to check blood sugar or specific enzyme function, and blood needs to be drawn after meals to find out the specific situation.

5. Pay attention to diet before physical examination

1. Eat a light diet the day before the physical examination, avoid eating salty, sweet, animal offal and other high-fat foods, and avoid drinking liquor.

2. It is best to fast (including water fasting) for more than 8 hours before the physical examination, so as not to affect the test results of blood glucose, blood lipids, urea nitrogen, liver function and other indicators; On the morning of the physical examination, you should have an empty stomach, fasting and water.

You can't eat anything, you can't drink water. If you take medicine, it will seriously affect the blood test results.