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Test Code
KLB
Test Name
Kleihauer-Betke Test
CPT Codes
85460
Expected Turnaround Time
1 day
Clinical Utility

Used to determine possible fetal-maternal hemorrhage, results are expressed as the percent of fetal cells detected.
Specimen and Container Info

Specimen Type: Whole Blood

Preferred Collection Container: Lavender Top (EDTA)

Minimum Acceptable Volume: 1 mL
Collection Instructions

Invert tube 8 - 10 times immediately after tube is filled at the time of collection.
Transport Instructions

Transport to the laboratory at room temperature.
Stability Requirements

Room Temperature

6 hours

Refrigerated

24 hours
Causes for Rejection
  • Clotted specimen
  • Specimen contaminated with IV fluid
  • Quantity not sufficient for testing
Methodology
Manual
Reference Intervals

0.0%

Performing Location
Cedar Crest Hospital, Muhlenberg Hospital, Pocono Hospital
Alternate Names
  • Fetal-Maternal Hemorrhage Test
  • KLB Test
  • Acid Elution for Fetal Hemoglobin
Testing Schedule
Routine daily, STAT testing available
The American Medical Association (AMA) Current Procedural Terminology (CPT) codes published by HNL Lab Medicine are guidelines and are intended for informational purposes only. CPT coding is the exclusive responsibility of the billing entity. View the Terms.
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