red top
Gray tube
Red
A red tube with no anticoagulant is typically used for an AFP test.
For an albumin test, the recommended blood tube is a red-top tube or a serum separator tube (SST) as it does not contain any anticoagulant, which is necessary for the accurate measurement of albumin levels.
The tube typically used for HgbA1C blood test is purple or lavender. These tubes contain an EDTA anticoagulant which helps preserve the blood sample for accurate testing.
A PSA test is typically collected in a lavender-top tube, which contains the anticoagulant EDTA.
The correct color tube for a thrombin test is typically a light blue tube. This tube contains sodium citrate as an anticoagulant, which is needed for coagulation studies.
For an Aspartate Aminotransferase (AST) test, you would typically use a red-top tube, which does not contain any anticoagulant. This allows the blood to clot, separating the serum that is needed for the test.
A lavender/purple top tube (containing EDTA anticoagulant) is typically used for an iron test. This anticoagulant helps preserve the sample for accurate testing.
Blood for a Basic Metabolic Panel (BMP) or Sequential Multiple Analysis (SMA) test is typically drawn into a green or red-topped tube. Green top tubes typically contain lithium heparin as an anticoagulant, while red top tubes do not contain any anticoagulant.
Lavender color tube containing the anticoagulant EDTA is ideal for CBC test.
A red-top tube is typically used for SGOT testing. It does not contain any anticoagulant and allows the blood to clot, facilitating the separation of serum from the blood cells.