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Test Code PHOS Phosphorus, Inorganic (PO4), Plasma or Serum

Methodology

Colorimetric End point

Performing Laboratory

Decatur Morgan Hospital-Decatur Campus/Parkway Campus

Specimen Requirements

Submit only 1 of the following specimens:


Plasma
Draw blood in a green-top (lithium heparin) tube(s). Spin down and send 1 mL (pediatric:  0.2 mL) of lithium heparin plasma.
Note:  1. Indicate plasma on request form.
2. Label specimen appropriately (plasma).
 
Serum
Draw blood in a plain, red-top tube(s) or a serum gel tube(s). Spin down and send 1 mL (pediatric:  0.2 mL) of serum.
Note:  1. Indicate serum on request form.
2. Label specimen appropriately (serum).

Reference Values

0-6 days:  4.0-9.0 mg/dL
7 days-2 years:  4.0-8.0 mg/dL
3-12 years:  3.0-6.0 mg/dL
>12 years:  2.7-4.5 mg/dL

Critical value (automatic call-back):  ≤1.0 mg/dL

Test Classification and CPT Coding

84100