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HelpTest Code 4010142 Phosphorus
Specimen Requirements
1.0 mL serum or plasma
NOTE: Separate serum/plasma from cells as
soon as possible after collection.
Container
PST (light green top) tube or SST (tiger, gold, or red top) tube
Minimum Volume
65 µL serum/plasma
Stability
8 hours at room temperature, 7 days at 2-8°C
May be frozen at -20°C for 3 months
Analytical Time
Same day
Sample Retention Time
7 days
Method
Photometry
CPT Code
84100
Performing Laboratory
Springfield Hospital Laboratory
Reject Due To
Improperly labeled sample
Gross hemolysis