Koch's test is a method used to detect disease through the injection of a specific substance under the skin.
Detailed Explanation of Koch's Test
The Koch test, as described in the reference, involves:
- Injection of Tuberculin: A small amount of a liquid called "tuberculin" or "Koch lymph" is injected under the skin. This substance was discovered by Dr. Robert Koch of Berlin.
- Purpose: This test was designed to detect the presence of disease.
How It Works
The tuberculin contains substances derived from the tuberculosis bacteria. When injected into a person who has been exposed to tuberculosis, it triggers a localized immune reaction at the injection site. This reaction can manifest as:
- Redness: The skin around the injection site might turn red.
- Swelling: The area may swell.
- Induration: A firm, raised area might develop at the injection site.
Key Points
- Discoverer: The test is named after Dr. Robert Koch, who discovered tuberculin.
- Substance Injected: The test uses tuberculin or Koch lymph.
- Objective: The test's primary goal is to detect a disease.
- Method: It involves a subcutaneous injection.
Summary Table
| Aspect | Description |
|---|---|
| Test Name | Koch's Test |
| Injected Substance | Tuberculin or Koch lymph |
| Discoverer | Dr. Robert Koch |
| Method | Subcutaneous injection |
| Purpose | To detect the presence of disease |
