Yellow or serum tube
A lavender or purple tube top is typically used for collecting blood samples for vancomycin trough levels.
A gold or red-top vacutainer tube is typically used for a basic metabolic panel (BMP) blood draw.
red top tube.
The fourth color Vacutainer tube in the order of blood draw is typically the green-top tube, which contains lithium heparin as an anticoagulant. It is usually used for chemistry tests that require plasma.
A green-top vacutainer tube (or sometimes a pink-top tube) is typically used for collecting blood samples for lithium level testing. The green tube usually contains lithium heparin as an anticoagulant for plasma testing, while the pink tube may contain EDTA if plasma separation is not required. The specific tube color may vary depending on the lab's protocols, so it's best to confirm with the lab where the test will be performed.
The vacutainer for a TSH test is usually a red and gray or gold top tube, which contains a gel separator. The test should be done in the morning as TSH levels tend to be higher at this time.
Red top, no gel.
24 hours
A red-top tube is typically used to draw blood for a vancomycin trough level. However, it is important to follow the specific instructions provided by the healthcare provider or laboratory.
For vancomycin trough levels, the recommended color tube is typically a red-top tube, which is a serum tube without additives. However, some laboratories may allow the use of a gold-top tube (SST) for serum collection as well. Always check the specific protocols of the laboratory you are using, as practices may vary.
A red-top tube (serum separator tube) would typically be used to draw blood for a vancomycin peak level test. This tube contains a clot activator and gel separator to obtain serum for testing.