Phosphorus

Message
Measurements of inorganic phosphorus are used in the diagnosis and treatment of various disorders including parathyroid gland and kidney diseases, and vitamin D imbalance.


Test Code
PHOS


Alias/See Also
LAB3000100


CPT Codes
84100

Preferred Specimen
2.0 mL serum collected in a gold serum separator tube (SST)


Minimum Volume
0.5 mL serum


Other Acceptable Specimens
2.0 mL serum collected in an orange rapid clot serum separator tube (RCT)


Specimen Stability
8 hours at Room Temperature (15-25oC)
1 week when Refrigerated (2-8o)
 


Reference Range
Sex Age Reference Range
M/F 0 - 1 month 3.9 - 6.9 mg/dL
M/F 2 - 12 months 3.5 - 6.6 mg/dL
M/F 1 - 3 years 3.1 - 6.0 mg/dL
M/F 4 - 6 years 3.3 - 5.6 mg/dL
M/F 7 - 9 years 3.0 - 5.4 mg/dL
M/F 10 - 12 years 3.2 - 5.3 mg/dL
M/F 13 - 15 years 2.9 - 5.1 mg/dL
M/F 16 - 18 years 2.7 - 4.9 mg/dL
M/F 19 - 150 years 2.5 - 4.6 mg/dL
     


Performing Laboratory
Penn Medicine Lancaster General Health



The CPT Codes provided in this document are based on AMA guidelines and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payor being billed. Any Profile/panel component may be ordered separately. Reflex tests are performed at an additional charge.