• Identify increased concentration, which is indicative of acute intravascular destruction of erythrocytes.
• Not of clinical value in the diagnosis of chronic hemolytic disorders.
- Patient Preparation
- Collect
- Green (sodium or lithium heparin).
- Specimen Preparation
- 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)
- Storage/Transport Temperature
- Refrigerated.
- Unacceptable Conditions
- EDTA or citrated plasma.
- Remarks
- Stability
- Ambient: 2 hours; Refrigerated: 1 week; Frozen: Unacceptable
Component Test Code* | Component Chart Name | LOINC |
---|---|---|
0020058 | Hemoglobin, Plasma | 721-1 |
- Free Hemoglobin