Phosphorus Lvl (PO4)

Department: Chemistry
Test Synonym(s): LAB113, PO4, Phosphorus Inorganic Blood, Phosphorus Level
CPT Codes: 84100
Methodology: Phosphomolybdate
Reference Range: 0-<15 days: 5.6-10.5 mg/dL; 15 days-<1 yr: 4.8-8.4 mg/dL; 1-<5yrs: 4.3-6.8 mg/dL; 5-<13 yrs: 4.1-5.9 mg/dL; 13-<16 yrs: 3.2-6.2 mg/dL; 16-<19 yrs: 2.9-5 mg/dL; 19-150 yrs: 2.3-4.7 mg/dL (Pediatric Reference Ranges only verified for serum, see CALIPER Study in Colantonio DA, et.al Clin Chem 2012;58(5):854-868.)
Tube Type: Light green top PST (Lithium Heparin with gel)
Specimen: Plasma
Alternate Specimen: Red top (no gel)
Pediatric Requirements: 2 light green top microtainers
Volume: 1 mL plasma
Minimum Volume: 1 light green top (Pediatric = 2 light green top microtainers)
Temperature: Separate within one hour and store at 2-8C until delivery
Stability: Room temperature: 1 day; Refrigerated: 4 days; Frozen: 1 year
Reasons for Rejection: Hemolysis, improper collection
Days Performed: Daily
Times Performed: Continuous
TAT: STAT: 1 hour; ROUTINE: 2 hours after receiving in lab

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