Blood routine examination is a common physical examination item that can understand a person's health status by detecting blood components and indicators. As the most common inspection item, there are some precautions that need to be understood to ensure more accurate detection results.
1、 What are the common blood routine items being checked for?
1. White blood cell count (WBC): White blood cells are an important component of the human immune system, and an increase in WBC count indicates that the body is experiencing infection or inflammation.
2. Red blood cell count (RBC) and hemoglobin concentration (Hb): Both RBC and Hb can reflect the supply and delivery of oxygen in the human body. A decrease in RBC or Hb may indicate hypoxia in the body, usually associated with anemia. Anemia may be caused by malnutrition, blood loss, bone marrow damage, and other reasons.
4. Mean corpuscular volume (MCV): It can reflect the morphology and size of red blood cells and help diagnose anemia related diseases.
5. Platelet count (PLT): Platelets are the key to hemostasis in the human body. A decrease in PLT indicates abnormal coagulation function in the body, which may result in the inability to quickly stop bleeding.
6. Mean platelet volume (MPV): It can reflect the size and morphology of platelets and is of great significance for diagnosing platelet related diseases.
7. Proportion of neutrophils: Neutrophils are special white blood cells that play an important role in infection and inflammatory responses. An increase in neutrophils indicates that the body is experiencing bacterial infections, inflammatory reactions, trauma, etc.
8. Lymphocyte ratio: Lymphocytes are also a type of white blood cell that can reflect the immune status of the human body. An increase in the proportion of lymphocytes indicates that the body is experiencing certain viral infections and immune system abnormalities.
2、 Precautions before blood routine examination
1. Fasting or drinking a small amount of water: Do not eat anything and only drink a small amount of water within 6-8 hours before the examination. Avoid abnormal changes in blood composition and indicators caused by eating.
2. Avoid strenuous exercise: Intense exercise accelerates the body's metabolism, releasing large amounts of waste and metabolites such as lactate and urea. At the same time, exercise requires the heart to increase its workload to deliver more oxygen and nutrients to various parts of the body. At this time, heart rate and cardiac output will increase, blood pressure will rise, and the myocardium will be easily damaged, thereby affecting blood composition. During intense exercise, muscle damage and minor bleeding may occur, which can lead to abnormal elevation of indicators such as creatine kinase. In addition, an increase in body temperature during exercise can lead to dehydration or edema, which can affect blood composition and indicators.
3. Avoid tension and emotional fluctuations: When tension and emotional fluctuations occur, adrenaline surges, the sympathetic nervous system becomes excited, leading to vasoconstriction, increased blood flow, increased cardiac load, and affecting blood composition and indicators. Meanwhile, tension or emotional fluctuations can easily cause gastrointestinal dysfunction, leading to poor gastrointestinal absorption and malnutrition. In addition, the endocrine system can also be affected by emotions, leading to changes in hormone levels and affecting blood composition and indicators. Negative emotions can also lead to a decline in immune system function, making the body vulnerable to invasion by bacteria, viruses, and other microorganisms.
4. Pay attention to the effects of medication: Certain medications (such as hormones, antibiotics, etc.) can affect the results of blood routine tests, so it is necessary to inform the doctor of any medication you are taking before conducting a blood routine examination.
3、 Precautions after blood routine examination
Abnormal blood routine examination results are the first red light of the disease. It is best to listen to the doctor's advice for more accurate examination and follow-up to determine the specific cause and take corresponding treatment measures. It is recommended to undergo a blood routine examination at least once a year to promptly detect and treat potential health problems.
Abnormal blood routine reflects different aspects of the body, such as infection, inflammation, anemia, coagulation disorders, immune system abnormalities, etc. The results of a blood routine examination can also be influenced by factors other than the disease, so it is important to pay attention to one's own behavior in order to obtain accurate results that reflect one's physical health status, so that doctors can determine the cause and prescribe the right medicine!