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Test Code PHOS PHOSPHORUS

Additional Codes

LAB113

Performing Laboratory

Porter Hospital Laboratory

Specimen Requirements

Specimen Type: Blood
Container/Tube: Tiger top, serum gel
Also Acceptable: Green top (Lithium Heparin)
Specimen Volume: Full tube, submit 0.5 mL serum
Specimen Minimum Volume: 0.3 mL
Collection Instructions:
1. Send specimen in original tube.
2. If there is a delay in transport of >1 hour, centrifuge tube.
3. Centrifuged samples are stable for:
• 8 hours at room temperature
• 2 days at 2-8 °C
• For longer storage, freeze at –20 °C or colder

Specimen Transport Temperature

Refrigerated

Test Schedule / Analytical Time / Test Priority / Turn Around Time

Daily / Available STAT / Routine - 4 Hours

                                       STAT - 60 Minutes

Test Classification and CPT Coding

84100

Reference Values

Pediatric Ranges updated 7-31-2020.

Reference is Pediatric Reference Intervals, 7th ed.  AACC Press, 2011

Age                        Male                      Female                
0 – 1 month        2.7 - 7.2                3.0 – 8.0              
1 – 3 months      3.0 – 6.8               3.0 – 7.5
3 mo – 1 y           3.0 – 6.9               2.5 – 7.0
1 – 4 y                   3.9 – 6.5               3.9 – 6.5              
4 – 7 y                   4.0 – 5.4               4.0 – 5.4              
7 – 10 y                 3.7 – 5.6               3.7 – 5.6
10 – 12 y              3.7 – 5.6               3.7 – 5.6
12 – 14 y              3.3 – 5.4               3.3 – 5.4
14 – 16 y              2.9 – 5.4               2.9 – 5.4
16 – 18  y              2.8 – 4.6               2.8 – 4.6

18 years and older: 2.6-4.7 mg/dl