Collection ProceduresQuestion 9 of 100
A comprehensive metabolic panel is ordered. Which tube is appropriate and what does it contain?
a.Gold or tiger-top serum separator tube containing a clot activator and gel
b.Light blue tube containing sodium citrate
c.Lavender tube containing K2 EDTA
d.Gray tube containing sodium fluoride
Explanation
Chemistry panels are run on serum from a serum separator tube, which holds a clot activator plus a thixotropic gel that forms a barrier between serum and cells after centrifugation. Citrate tubes are for coagulation, EDTA for hematology, and fluoride for glucose and alcohol preservation. Using an anticoagulated tube in place of the SST changes several chemistry values.
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