Test Details

Mnemonic

PTPF

Ordering Code

3434360

CPT-4 Code(s)

84157

Specimen Information

Collect

Pleural fluid

Specimen Preparation

Send 1.0 mL pleural fluid in a screw capped plastic vial.

Minimum Volume

0.2 mL

Transport Temperature

Frozen

Rejection Criteria

Gross hemolysis

Stability

Room temperature: 7 days
Refrigerated: 28 days
Frozen: 28 days

Methodology

Spectrophotometry (SP)
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Reference Range

Transudate: <3 g/dL
Exudate: >3 g/dL
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Performing Laboratory

Quest SJC
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