Does staying up late affect blood drawing?

Blood test is a common method of examination in life. When we have a physical examination or go to the hospital to check a certain disease, we often need to have a blood test. Before the blood test, we must understand some relevant precautions and some issues that need to be paid attention to before the blood test. Only in this way can the accuracy of the blood test be achieved and inaccurate results can be avoided. So, does staying up late affect the blood test?

Does staying up late affect blood drawing?

1. Impact on routine blood tests

Staying up late will affect liver function tests. The liver is the hematopoietic factory and the basis for blood storage in the human body. If the liver function is abnormal, it will also affect routine blood tests. In addition, it will also affect the levels of various endocrine hormones.

2. Affects the test of alanine aminotransferase

Alanine aminotransferase is an important indicator of abnormal liver function. The liver is an important organ for detoxification in the human body. Staying up late will inhibit the liver's detoxification function, leading to a decrease in human immunity, causing an abnormal increase in alanine aminotransferase, and will also affect the results of routine urine tests.

3. Impact on liver function tests

If liver function is to be tested during the physical examination, staying up late may affect the transaminase results in the liver function test, mainly by increasing the transaminase level.

Because night is the time for the liver to work and repair itself, not resting when it should be will affect the normal functioning of the liver to a certain extent and lead to abnormal liver function.

What should you pay attention to before drawing blood for a physical examination?

1. The day before the physical examination, try not to stay up late, go to bed before 10 o'clock, and avoid drinking strong tea, coffee and other stimulating beverages to avoid affecting sleep.

2. Avoid overeating, especially drinking alcohol, eating salty, greasy, or indigestible food, so as not to affect the test results the next day. It is generally required to fast after 8 pm, because the results of some test items may be affected by food factors. Also, try not to take medication.

3. Pay attention to rest the day before the physical examination and avoid strenuous exercise and emotional fluctuations.

4. Women should avoid physical examinations during the menstrual period. Rinse the vulva with clean water within 24 hours before the examination, but do not rinse the vagina, even if the vaginal secretions have an odor, because water can easily wash away the bacteria that cause the disease and affect the doctor's diagnosis.

5. Do not stop taking medication rashly before a physical examination. Although fasting is required for blood drawing, patients with chronic diseases should be treated differently. For example, patients with hypertension need to take antihypertensive drugs every morning to maintain blood pressure stability. Stopping or delaying medication rashly may cause a sudden rise in blood pressure and cause danger.

6. If a blood test is required, do not eat breakfast on the morning of the examination. The best time for the examination is around 7 to 9:30 in the morning.