Test Details
Methodology
Automated cell counter
Result Turnaround Time
Within 1 day
Turnaround time is defined as the usual number of days from the date of pickup of a specimen for testing to when the result is released to the ordering provider. In some cases, additional time should be allowed for additional confirmatory or additional reflex tests. Testing schedules may vary.
Use
Evaluate anemia, blood loss, hydration or suspected polycythemic condition, and response to treatment
Limitations
Hyperlipemic plasma (especially Fredrickson and Lees type I and V in which chylomicronemia is present) or white count >50,000/mm³ may falsely elevate the hemoglobin result with corresponding increase in the MCH. The laboratory will attempt to correct this interference by a special technique.
Specimen Requirements
Specimen
Whole blood
Volume
Tube fill capacity
Minimum Volume
0.5 mL (500 μL for pediatric microtainer capillary tubes; fill tube to capacity.) (Note: This volume does not allow for repeat testing.)
Container
Lavender-top (EDTA) tube
Collection Instructions
Invert tube 8 to 10 times immediately after tube is filled at the time of collection.
Stability Requirements
Temperature | Period |
|---|---|
Room temperature | 1 day |
Refrigerated | 3 days |
Frozen | Unstable |
Freeze/thaw cycles | Unstable |
Storage Instructions
Maintain specimen at room temperature.
Causes for Rejection
Hemolysis; clotted specimen; tube not filled with minimum volume; improper labeling; transport tubes with whole blood; specimen received with plasma removed; specimen diluted or contaminated with IV fluid; specimen drawn in any anticoagulant other than EDTA
LOINC® Map
| Order Code | Order Code Name | Order Loinc | Result Code | Result Code Name | UofM | Result LOINC |
|---|---|---|---|---|---|---|
| 005041 | Hemoglobin | 718-7 | 005041 | Hemoglobin | g/dL | 718-7 |
| Order Code | 005041 | |||||
| Order Code Name | Hemoglobin | |||||
| Order Loinc | 718-7 | |||||
| Result Code | 005041 | |||||
| Result Code Name | Hemoglobin | |||||
| UofM | g/dL | |||||
| Result LOINC | 718-7 |