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Phosphorous, Blood
Test CodePHOS
Alias/See Also
PO4
CPT Codes
84100
Preferred Specimen
0.6 mL of whole blood (0.3 mL of serum or plasma)
Minimum Volume
0.2 mL of whole blood (0.1 mL of serum or plasma)
Instructions
Separate from cellular material within 4 hours of collection.
Transport Container
Serum separator (gold top) or for Inpatients/MSTI/ED only Lithium Heparin (green or mint top)
Transport Temperature
Room Temperature
Specimen Stability
Room Temperature: 3 days
Refrigerated: 7 days
Frozen: 2 months at -18 C
Refrigerated: 7 days
Frozen: 2 months at -18 C
Methodology
Colorimetric
Setup Schedule
Daily
Report Available
Inpatient Turn around time: Stat 30 minutes, routine 3 hours. Outpatient testing received by noon will be reported by 4:30 p.m. Specimens received after noon will be reported by the next morning.