Test Details

Mnemonic

5INHE

Ordering Code

3800209

CPT-4 Code(s)

85220, 85390. Plus 85335 and/or 85390 as appropriate, at additional fees

Specimen Information

Patient Preparation

Patient must not be receiving Coumadin (warfarin) or heparin therapy and patient fasting is preferred.

Collect

Light blue 3.2% sodium citrate

Specimen Preparation

Send 3.0 mL plasma (1.0 mL in each vial) frozen in 3 separate screw-capped plastic vials.
See appendices for coagulation test collection instructions.

Minimum Volume

2.0 mL in 2 screw-capped plastic vials, 1.0 mL in each.

Transport Temperature

Frozen

Rejection Criteria

Serum, non-frozen or hemolyzed specimens

Stability

Room temperature: 4 hours
Refrigerated: 4 hours
Frozen: 14 days

Methodology

Optical Clot-based
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Reference Range

See report
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Performing Laboratory

Mayo Clinic Laboratories
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