Will blood tests be more accurate during physical examinations?
Nowadays, many more formal units need personnel to undergo physical examination before entering the enterprise. What should we pay attention to when doing experience?
Attention: Early morning fasting
Usually, blood extraction is the necessary choice for experience, blood routine examination can also detect whether liver function, kidney function, etc. belong to normal work. No strenuous exercise, no strong tea, no alcohol and no smoking before blood drawing. If you have the habit of taking some medicines and health products, you also need to check with your doctor in advance, and you can't take them before the examination.
In general, venous blood is drawn, because the various components of venous blood are relatively constant, which can also more accurately reflect the changes in various functions of the body. Blood testing reagents generally ensure that the original characteristics of blood are not changed, and also provide the necessary conditions for blood testing.
Normal human blood also has a "life span", many people will have such questions, if the blood test, how long will it take to make up for it? In fact, the amount of blood needed for the test is about 2-20 ml. For the human blood storage capacity of 4000-5000 ml, it is very small. Normal people will have their own hematopoietic function. Therefore, it is not necessary to worry about the loss of blood from the blood test to affect the body.
Attention: Fresh morning urine inspection
The dinner before the inspection should avoid big fish and meat, and not drink too much water in the evening. Urinary specimens should be fresh morning urine as far as possible for routine urine examination. Because there is less drinking water at night, many components of urine excreted by kidney are stored in the bladder and concentrated, which is easy to detect. When retaining urine, it is better to retain mid-stream urine, avoid contamination of feces and vaginal secretions, and urine volume should be above 20 ml. Use the disposable clean containers provided by the hospital to retain urine as far as possible to prevent the urine from being placed for too long or using unclean containers to affect the results of the examination. Female menstruation is not suitable for urinalysis.
Attention: Mucus or blood should be sent for special examination!
Normally, any examination should not serve drugs or vitamins. The same is true for stool examination. Two weeks in advance, one or two days before the examination of bismuth-containing drugs, food containing animal blood, such as pig blood, should not be eaten. Time should be limited to 30 minutes during inspection.
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