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LABORATORY TEST DIRECTORY

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Phosphorus, Inorganic, Plasma or Serum

CPT Code(s): 84100
Specimen Required: Patient Preparation:
Collect:Plasma separator tube or serum separator tube. Also acceptable: Green (sodium or lithium heparin), lavender (EDTA), or pink (K2EDTA).
Specimen Preparation:Allow serum tube to clot completely at room temperature. Separate serum or plasma from cells within 2 hours of collection. Transfer 1 mL serum or plasma to an RDL Standard Transport Tube. (Min: 0.2 mL)
Storage/Transport Temperature:Refrigerated.
Stability:After separation from cells: Ambient: 24 hours; Refrigerated: 4 days; Frozen: 1 year
New York DOH Approval Status: This test is New York DOH approved.
Aliases:
  • HPO4-2, PO4-3Inorganic phosphatePhosphatephosphorus blood concentrationPhosphorus blood levelPhosphorus blood testPhosphorus,serumPO4PO4 concentrationPO4 levelSerum phosphorus
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