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Heparin Level (UFH)

Justification

Heparin monitoring may be warranted in kidney disease, pregnancy, cancer, geriatric, obese patient populations and when bleeding is observed. Note: monitoring heparin with the aPTT in patients with lupus anticoagulants may be unreliable.

STAT: < 1 week

Chromogenic

Draw Tube: Blue Top

Sample Type: Citrated Plasma

Specimen Requirements

Sample Type Volume Required Minimum Volume Stability
PREFERRED Citrated Plasma 1mL 0.5mL Frozen (-20C): 2 weeks
Frozen (-80C): 6 months
ALTERNATIVE - - - -
REJECTION CRITERIA Thawed in transit, refrozen or clotted sample
SPECIAL INSTRUCTIONS -

General Information

METHODOLOGY Chromogenic
STAT TAT < 1 week
STAT TAT Performance > 90% of results released in 1 week
ROUTINE TAT < 1 week
ALTERNATIVE NAMES UFH level, aXa
DESCRIPTION -
LIMITATIONS -
NORMAL RANGE -
ASSOCIATED TESTING -
REFERENCES -
SAMPLE REPORT Upon request
NEW YORK STATE APPROVED No

Test Codes

ORDER CODE P3349
CPT CODE 85520
LOINC CODE 3274-8