yellow
A lavender or purple top tube is typically used for TSH (Thyroid Stimulating Hormone) testing.
A lavender or purple tube is typically used for TSH (Thyroid Stimulating Hormone) blood draw.
Red
A TSH blood draw typically goes into a lavender or purple-top tube containing an EDTA anticoagulant. This tube is used for testing thyroid-stimulating hormone (TSH) levels as part of thyroid function tests.
TSH (Thyroid Stimulating Hormone) is typically drawn in a lavender/purple-top tube, which contains the anticoagulant EDTA. It is important to check with the specific laboratory or facility to confirm the correct tube color for this test.
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.
The color of the tube that is most often used for hematology CBC tests are
For a HgA1c you would need a lavender top tube.
red tube
The color of tube used for ferritin is typically gold or red/gray.
The color of the tube commonly used for CBC (Complete Blood Count) is lavender or purple.
The color tube used for folate testing is typically a lavender or purple-top tube. These tubes contain the anticoagulant EDTA which is used to preserve the blood sample for testing.