Which of the following color top tubes will the phlebotomist need to perform an A1C, CBC, hepatic panel, and a comprehensive metabolic panel?

Yellow top tubes typically contain ACD (acid citrate dextrose) or SPS (sodium polyanethol sulfonate) additives for blood culture collection, not the required additives for the specified tests. Blue top tubes are commonly used for coagulation studies with sodium citrate as the anticoagulant, not suitable for the listed panels.

Green top tubes typically contain heparin as an anticoagulant and are used for plasma determinations, such as electrolytes and ammonia assays, not commonly required for the specified panels. Gray top tubes contain sodium fluoride and potassium oxalate, primarily used for glucose testing and preserving blood samples for glycolysis studies.

Red top tubes are often used for serum testing without any additives, while black top tubes are used for ESR (erythrocyte sedimentation rate) testing, neither of which are suitable for the specified comprehensive panels requiring specific additives for accurate results.