| 摘要 |
A specimen holding device including a test tube having a cylindrical body with one end open and the other end closed, a cap securable to the cylindrical body to close the open end, and a content indicator secured to the tube and separate from the cap. The content indicator extends around the tube near the tube open end and has a selected color matching the cap, where the color is indicative of at least one of a test to be performed on the specimen in the tube and a specimen additive in the tube. The indicator may be a raised elastic ring around the tube cylindrical body and abutting the cap when the cap is secured to the cylindrical body. Alternatively, the indicator may be a colored ring fixed to the tube body around the tube adjacent the tube open end, where the cap overlaps with the content indicator when secured to the cylindrical body.
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