What is a Phlebotomist?

Venous blood is generally taken for blood tests. Except for special requirements, venous blood tests generally require blood to be drawn in the morning. Minimize the amount of exercise before blood drawing. Do not eat food. Keep fasting. Drink a small amount of water. The results of some experiments were disturbed.

Draw blood

(Chinese words)

Venous blood is generally taken for blood tests. Except for special requirements, venous blood tests generally require blood to be drawn in the morning. Minimize the amount of exercise before blood drawing. Do not eat food. Keep fasting. Drink a small amount of water. The results of some experiments were disturbed.

If you are an inpatient, your doctor or nurse should draw blood for you in a relatively stable state. Before the blood is drawn, the skin at the blood drawing site should be cleaned as much as possible.

The amount of blood drawn is determined based on the content of the test and the number of items. The amount of blood drawn is generally 2-20 ml, and the maximum is not more than 50 ml.

Chinese name

Draw blood

Explain

Venous blood

Use

blood test

Precautions

Do not eat food, keep fasting

Taking blood is checking. General venous blood collection, except for special requirements

When it comes to laboratory tests, patients will think of blood draws and pain, and they will have different levels of nervousness, and children may cry. It is painful to draw blood, but it is very mild. Tension and even fear are mainly psychological. In order to ensure the stability and accuracy of the test results, patients should actively cooperate and maintain a relaxed state.

I often hear patients say, "How much nutrition does it take to pump so much blood to make it up?" In fact, there is absolutely no need to worry and nervous because this only accounts for 5% -3% of the total blood volume of the human body. Special nutrition, the human body can fully adjust and adapt automatically.

After the blood is drawn, the doctor or nurse will distribute the blood in different test tubes to meet different experimental requirements.

Fasting blood has become a basic requirement for many laboratory tests, mainly for the following reasons:

(1) The normal reference values of many blood draw tests are derived from the results of fasting blood draws from normal populations, and obtained after statistical analysis

(2) Many chemical components in the blood can change after eating, so accurate test values cannot be obtained. For example, after eating foods high in fat,

Reliable requirements for blood drawing

1. Fasting after 8pm

Fasting should be done after 8 pm the day before blood drawing: avoid heavy drinking, alcohol content in blood will directly increase or decrease the result; it is best not to eat foods with high oil content, such as shabu-shabu, before blood testing Before you check cholesterol, eat less eggs, which will affect the blood components and cause "misjudgments."

2, do not do strenuous exercise in the morning

You should get enough sleep at night before blood drawing, and you should not do strenuous exercise in the morning. Because strenuous exercise can make

1. If candidates apply for a secondary or tertiary examination before middle school, they must take a blood test.

2. Elementary school every 10 weeks.

3. Participate in a physical examination a few months before the college entrance examination.