Phosphorus Level*
Methodology
Colorimetric Absorbance
Performing Laboratory
Rutland Regional Medical Center Laboratory
Specimen Requirements
Specimen Type: Blood
Container/Tube:
Preferred: Light-green top (lithium heparin gel)
Specimen Fill Volume: Full tube
Specimen Minimum Volume: 2 mL
Collection Instructions:
1. Send specimen in original tube.
2. If there is a delay in transport of >1 hour, centrifuge tube.
Specimen Transport Temperature
Refrigerated
Normal Reference Values
2.5-4.9 mg/dL
Critical Value: <1.5 mg/dL (automatic call-back)
Day(s) Performed
Daily
Analytical Time:
1 day
Availble Stat
Test Classification and CPT Coding
CPT: 84100
LOINC: 2777-1
Order Code: RMCPHOS
Result Code: RMCL800508
Result Name: Phosphorus