Laboratory Test Directory

Part of an automated multi-parameter counting of red blood cells (RBC) using electronic resistance detection enhanced by hydrodynamic focusing. The hematocrit is measured utilizing cumulative pulse height detection.

Performed:

Samples are accepted 24 hours per day at Sample Management, 5.136 McCullough

Turnaround Time:

STAT: 1 hour; Routine: 4 hours

Specimen Requirements:

Special Instructions: ECMO specimens should be delivered directly to the Hematopathology lab (5.142 McCullough)

Collect: Routine venipuncture; Collect in EDTA (lavender tube). Micro-collection is acceptable.

Specimen: Blood

Volume: Lavender Tube 4.0 ml or volume stated on collection tube. Microtainer 250 u/L

Minimum Volume:90% of Stated tube volume

Storage/Transport: Stable at Room Temperature for 24 hours.

Stability: Stable Refrigerated for 36 hours.

Causes for Rejection: Clotted, QNS, identification error, hemolysis

Clinical Information:

Critical Values < 21.0% (newborns); < 15.0% (children/adult)

Interfering Substances: Clots or fibrin strands; inappropriate anticoagulant; extremely elevated WBC counts; sickle cells; hemolysis; electrolyte imbalances; warm or cold agglutinins; elevated plasma lipids; elevated chylomicrons; elevated bilirubin; elevated serum urea nitrogen.

Reference Range:

AGE			HCT
0M	-	2W	45	-	67
2W	-	1M	39	-	63
1M	-	2M	31	-	55
2M	-	6M	28	-	42
6M	-	2Y	33	-	39
2Y	-	6Y	34	-	45
6Y	-	12Y
12Y	-	Adult FEMALE
12Y	-	Adult MALE	40	-	50

Note:

CPT 4 Code:

85014 (Limited Coverage Test (NCD)

12-5-2011

Reviewed: M. Abad, MLS (ASCP)^CM, SH

When ordering tests for which Medicare or Medicaid reimbursement will be sought, physicians should only order tests that are medically necessary for the diagnosis or treatment of the patient. Components of the organ or disease panels may be ordered individually. The diagnostic information must substantiate all tests ordered and must be in the form of an ICD-9 code or its verbal equivalent.

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