blue
The color tube for Gamma-glutamyl transferase (GGT) testing is typically green or light green.
A gold or tiger-top tube is typically used for a gamma-glutamyl transferase (GGT) test. This type of tube contains a gel separator and clot activator, which helps with serum separation.
tiger top
A gold or red/gray tiger top tube (serum separator tube) is typically used for GGT (gamma-glutamyl transferase) testing. This tube contains a clot activator and gel separator to obtain serum for testing.
GGT tests are for liver function, not drugs. So the answer is no. Then again...nothing says the doctor can't also order a THC screen at the same time as the GGT test.
HbA1C test tubes are typically light purple in color, signifying that the blood sample is for a chemistry test.
Gray tube
SST tube (yellow color)
need not
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.
The tube top color for an acid phosphatase blood test is lavender.
blue tube