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What does a routine blood test usually check for?

Mar 29, 2023 Source: Cainiu Health
Dr. Yang Shuwen
Introduction
A comprehensive blood test generally includes routine blood tests, serum tests, and biochemical tests. There are many items involved in a comprehensive blood test, primarily involving blood sampling to analyze various cellular components in the blood. In addition, patients must fast before undergoing blood tests, as this helps ensure more accurate results.

Generally, a comprehensive blood test includes routine blood tests, serum tests, biochemical tests, etc. The details are as follows:

1. Routine Blood Test

A comprehensive blood test covers various items, primarily involving drawing blood to analyze different cellular components in the blood. For example, a routine blood test usually includes blood type, erythrocyte sedimentation rate (ESR), etc. Through blood testing, levels of white blood cells, lymphocytes, red blood cells, and other indicators can be determined. Changes in these values help identify the cause of illness and assess disease severity.

2. Serum Tests

This category generally includes tests for hepatitis B surface antigen (five-panel hepatitis B test), tumor markers, hepatitis C antibody, and infectious disease screening. Infectious disease screening involves HIV and syphilis testing. These tests help determine specific causes of illness, enabling targeted treatments based on the diagnosis.

3. Biochemical Tests

Biochemical tests typically include liver function tests, electrolyte tests, lipid profile tests, and kidney function tests. These tests help detect various conditions such as liver or kidney dysfunction and hyperlipidemia.

In addition, the comprehensive blood test may also include the five-panel hepatitis B test. Patients must fast before undergoing blood tests to ensure more accurate results.

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