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Test Code LAB90118 Hemoglobin (Hgb), Plasma

Additional Codes


Reporting Title

Plasma Hgb



Useful in identifying hemolytic anemia.

Performing Laboratory

OhioHealth Laboratory Services-RMH Special Testing

Specimen Requirements

Draw blood in a lavender-top (EDTA) tube(s). (Serum is not acceptable.) Invert gently to mix blood. Centrifuge, pipet off plasma, centrifuge again, and pipet off 1 mL of EDTA plasma. Send specimen refrigerated.

The plasma needs separated from the cells within a strict 2 hours of collection.

Note:  1. If possible, specimen should be second tube drawn.

2. Blood should be free-flowing.

Specimen Transport Temperature

Refrigerate/Ambient OK/Frozen OK

Reference Values

0.0-0.03 g/dL

Presence of excess hemoglobin in plasma is a reliable sign of intravascular hemolysis only if one can be sure that lysis has not been caused by phlebotomy or specimen processing.

Day(s) Test Set Up

Monday through Friday

Test Classification and CPT Coding