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Laboratory Medicine

Test catalogue


Test Name


Gold Tube Specimen Type / Requirements

Container Type = 1 Gold Top (SST)

Minimum Volume = 2 ml serum

Tube must fill to at least ½ or greater of its vacuum capacity

Specimen Handling

Collection Instructions: Serum collected with or without gel separator. If the patient is receiving recombinant erythropoietin analysis may not be valid and reference ranges are not applicable Write your initials, date and time of collection on the collection label.

Special Instructions Separate from cells within 2 hours of collection. Store and send frozen

Rejection Criteria: Multiple freeze/thaw unacceptable. Hemolyzed or icteric specimens may falsely elevate results. Unlabeled or Not Sufficient Quantity Samples will be rejected.

Stability: Stable for 10 days at room temperature, 18 days refrigerated and 28 Days frozen.

Transportation: Send sample to core lab as soon as possible.

Required Documentation

Turnaround Time (TAT)

5 Days

Test Utilization

Reference Value

205 - 285 µmol/L

Test code



Nitroblue Tetrazolium

Testing Location

Referred Out – ON, Canada (ROICL02)

Other Information