What does a blood test check?

In order to prevent health problems and achieve early detection and early treatment after discovering a disease, you need to do regular check-ups in your daily life. There are many ways to check your body. Routine blood tests, as the most common form of examination, can detect abnormal conditions in our body. Do you know what blood tests are checking?

Routine blood test is the most common and basic blood test. Blood is composed of two major parts: liquid and visible cells. Routine blood tests examine the cellular part of blood. Blood has three types of cells with different functions: red blood cells (commonly known as red blood cells), white blood cells (commonly known as white blood cells), and platelets. Determine the disease by observing changes in quantity and morphological distribution. It is one of the commonly used auxiliary examination methods for doctors to diagnose diseases.

Notes before the test: (1) Do not eat greasy or high-protein foods and avoid drinking large amounts of alcohol the day before blood collection. The alcohol content in the blood will directly affect the test results.

(2) You should fast for 12 hours starting at 8pm the day before the physical examination to avoid affecting the test results.

(3) When drawing blood, you should relax to avoid blood vessel constriction due to fear, which will increase the difficulty of blood collection.

After the examination: (1) After drawing blood, apply local pressure on the needle hole for 3-5 minutes to stop the bleeding. Note: Do not rub to avoid causing subcutaneous hematoma.

(2) The pressing time should be sufficient. The clotting time varies from person to person, and some people need a little longer to clot. Therefore, if you stop applying pressure immediately when the surface of the skin seems to be not bleeding, the bleeding may not stop completely, and the blood may seep into the subcutaneous layer, causing bruises. Therefore, pressing for a longer time can completely stop the bleeding. If there is a tendency of bleeding, the pressing time should be prolonged.

(3) If you experience symptoms of needle phobia such as dizziness, blurred vision, fatigue, etc. after blood draw, you should lie down immediately and drink a small amount of sugar water. Wait until the symptoms are relieved before undergoing a physical examination.

(4) If local bruising occurs, apply a warm towel for 24 hours to promote absorption.

A blood test is to measure whether our body is healthy by drawing blood and determining whether the normal values ​​in the blood are normal. Here the editor would like to recommend that you go to the hospital for a full-body check-up every three months so that diseases can stay away from us. If there is an abnormal condition in the body, it is necessary to diagnose it in time and then adopt a reasonable treatment plan.