How to do routine blood tests
Routine blood examination is one of the most basic examination items in medical diagnosis, which can help doctors quickly understand the patient's health status. This article will introduce in detail the blood routine examination process, precautions and the meaning of common indicators to help you better understand this examination.
1. Process of routine blood examination
Routine blood tests usually include the following steps:
| steps | Specific content |
|---|---|
| 1. Make an appointment | Make an appointment for routine blood tests at the hospital or physical examination center in advance. |
| 2. Prepare on an empty stomach | It is usually necessary to fast for 8-12 hours to avoid diet affecting the results. |
| 3. Blood collection | Healthcare workers draw a small amount of blood from a vein, usually in your elbow. |
| 4. Submit for inspection | The blood sample is sent to a laboratory for testing. |
| 5. Report | Inspection reports are usually issued within 1-2 working days. |
2. Precautions for routine blood examination
In order to ensure the accuracy of the inspection results, you need to pay attention to the following points:
| Things to note | Description |
|---|---|
| fasting | Avoid eating 8-12 hours before the examination, but you can drink a small amount of water. |
| Avoid strenuous exercise | Avoid strenuous exercise 24 hours before the examination to avoid affecting the indicators. |
| Inform about medication status | Certain medications may affect the results, so you need to inform your doctor in advance. |
| relax | Stress can cause changes in blood composition, stay relaxed. |
3. Common blood routine indicators and their significance
Routine blood examination includes a number of indicators. The following are common indicators and their clinical significance:
| indicator | normal range | clinical significance |
|---|---|---|
| White blood cell count (WBC) | 4-10×10⁹/L | Too high may indicate infection, and too low may indicate low immunity. |
| Red blood cell count (RBC) | Male 4.0-5.5×10¹²/L Female 3.5-5.0×10¹²/L | Reflects anemia or polycythemia. |
| Hemoglobin (Hb) | Male 120-160g/L Women 110-150g/L | An important indicator to judge the degree of anemia. |
| Platelet count (PLT) | 100-300×10⁹/L | Too high may increase the risk of blood clots, and too low may cause bleeding. |
| neutrophil ratio | 40%-75% | Reflect bacterial infection. |
| lymphocyte ratio | 20%-50% | Reflect viral infection or immune function. |
4. How to interpret blood routine reports
After getting the blood routine report, you can follow the following steps for preliminary interpretation:
| steps | Specific content |
|---|---|
| 1. Check the exception mark | Outliers are often marked in reports with arrows or special colors. |
| 2. Pay attention to key indicators | Focus on white blood cells, red blood cells, hemoglobin, and platelets. |
| 3. Combined with symptom analysis | Combine the test results with your own symptoms to make a preliminary judgment on possible problems. |
| 4. Consult a doctor | The final results must be interpreted by a professional doctor and do not make your own diagnosis. |
5. Frequently Asked Questions about Routine Blood Tests
Here are answers to frequently asked questions about routine blood tests:
| question | Answer |
|---|---|
| How long does the inspection take? | The blood collection process only takes 1-2 minutes, and the report is usually issued in 1-2 days. |
| Will the examination hurt? | There will be a slight stinging sensation when taking blood, but it is bearable. |
| Can I drink water? | You can drink a small amount of boiled water during fasting. |
| How frequent are inspections? | It is recommended for healthy people to take it once a year, and for patients with chronic diseases, it is recommended to take it once a year. |
6. Summary
Routine blood examination is a simple but very important physical examination item that can provide doctors with a wealth of health information. By understanding the inspection process, precautions, and indicator meanings, you can better cooperate with the inspection and initially understand the report results. However, it should be noted that any abnormal test results should be ultimately interpreted and diagnosed by a professional doctor.
Regular blood routine examinations can help detect health problems early. It is recommended that healthy people should have examinations at least once a year. Patients with chronic diseases or special groups should increase the frequency of examinations according to doctor's recommendations.
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