Hemoglobin, Unstable
0049020
Ordering Recommendation
Submit With Order
Mnemonic
HGB UNSTAB
Methodology
Visual Identification
Performed
Mon-Fri
Reported
1-2 days
New York DOH Approval Status
This test is New York DOH approved.
Specimen Required
Patient Preparation
Test results are unreliable in infants younger than 6 months of age.  
Collect
Lavender (EDTA) or pink (K2EDTA).  
Specimen Preparation
DO NOT FREEZE. Transport 5 mL whole blood. (Min: 2 mL)  
Storage/Transport Temperature
Refrigerated.  
Unacceptable Conditions
Samples more than 7 days old. Specimens collected on infants less than 6 months old.  
Remarks
 
Stability
Ambient: Unacceptable; Refrigerated 7 days; Frozen: Unacceptable  
Reference Interval
Negative
Interpretive Data
Note
CPT Code(s)
83068
Components
Component Test Code*Component Chart Name
0049020Hemoglobin, Unstable
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Cross References
  • Hb Heat Sensitivity
  • Heat Stability Test
  • Isopropanol Stability Test
  • RBC Heat Stability Test
  • Unstable Hemoglobin