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HelpTest Code TOT T4 T4 Total
Cerner Test Code
T4 TOT
Acceptable Collection Tube(s) or Specimen
Preferred: GRN PST
Acceptable: Gold SST or Red Top
Specimen Draw Volume
Volume: 1.0 mL
Minimum Volume: 0.5 mL
Processing Instructions
Draw in a GRN PST. Allow tube to clot for 30 minutes, centrifuge, and refrigerate.
Stability
Stability: Room Temp 8 hrs, Refrigerated 2 days, Frozen
Performed Test Frequency
Everyday
CPT(s)
84436
Methodology
Competitive immunoassay using direct chemiluminescent technology
Performing Location
MercyOne Des Moines Laboratory, Chemistry