• Identify increased concentration, which is indicative of acute intravascular destruction of erythrocytes.
• Not of clinical value in the diagnosis of chronic hemolytic disorders.
Green (sodium or lithium heparin).
Separate plasma from cells ASAP or within 2 hours of collection (delayed separation from cells will elevate plasma hemoglobin). Transfer 2 mL plasma to an ARUP Standard Transport Tube. (Min: 0.7 mL)
EDTA or citrated plasma.
Ambient: 2 hours; Refrigerated: 1 week; Frozen: Unacceptable
|Component Test Code*||Component Chart Name||LOINC|
- Free Hemoglobin