Hemoglobin
Test ID:
704385
CPT code:
85018
Synonyms:
Hemoglobin (Hb)
Clinical Use:
Evaluate anemia, blood loss, hydration or suspected polycythemic condition, and response to treatment
Test Information:
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.
Specimen Type:
Whole blood
Requested Volume:
tube fill capacity
Minimum Volume:
0.5mL
(500 μL for pediatric microtainer capillary tubes; fill tube to capacity.)
Container Type:
Lavender-top (EDTA) tube
Collection:
Invert tube 8 to 10 times immediately after tube is filled at the time of collection.
Storage Instructions:
Maintain specimen at room temperature.
Stability Requirements:
Temperature |
Period |
---|---|
Room temperature |
1 day |
Refrigerated |
3 days |
Frozen |
Unstable |
Freeze/thaw cycles |
Unstable |
Rejection Criteria
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
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MCI Diagnostic
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