Geisinger Medical Laboratories/Geisinger Proven Diagnostics Test Catalog

Order Display Name: Geisinger Epic Procedure Code Or ID CPT Code:  

PHOSPHORUS

ORDERING INFORMATION:
Geisinger Epic Procedure Code: LAB2846         Geisinger Epic ID: 14398

SPECIMEN COLLECTION
Specimen type:
Plasma or serum
Preferred collection container:
Specimen required:
2 mL of serum or plasma; minimum 0.2 mL.

SPECIMEN PROCESSING
Specimen processing instructions:
Allow serum to clot. Centrifuge to separate serum or plasma. 
Transport temperature:
Refrigerated (preferred). Room temperature or frozen specimen also acceptable.
Specimen stability:
Spun SST: Room temperature: 24 hours. Refrigerated: 4 days. Frozen: 1 year. Spun PST: 12 hours.
Rejection criteria:
Stability limits exceeded.

TEST DETAILS
Reference interval:
Less than 30 days: 3.9-7.7 mg/dL
30 days to 1 year: 3.5-6.6 mg/dL
1 to <4 years: 3.1-6.0 mg/dL
4 to <13 years: 3.0-5.7 mg/dL
13 years and older: 2.5-4.8 mg/dL
CPT code(s):
84100
Note: The billing party has sole responsibility for CPT coding.  Any questions regarding coding should be directed to the payer being billed.  The CPT codes provided by GML are based on AMA guidelines and are for informational purposes only.
Methodology:
Spectrophotometric (Colorimetric)
Synonyms:
Phosphate, Inorganic Phosphorus
PO4, PHOS
Clinical significance:
An increased phosphorus with a decreased calcium suggests either hypoparathyroidism or renal disease. A decreased phosphorus and an increased calcium suggests hyperparathyroidism or sarcoidosis.

Decreased phosphorus and calcium may indicate malabsorption, vitamin D deficiency and renal tubular acidosis. Increased phosphorus and calcium suggest milk-alkali syndrome or hypervitaminosis D.
Doctoral Director(s:)
Hoi-Ying Elsie Yu, PhD, DABCC
Sheng-Ying (Margaret) Lo, PhD, DABCC    
Review Date: 01/09/2020

Performing Locations

Geisinger Medical Center

Performing laboratory: Automated Chemistry
Technical Lead: Mariana Moyer, Jared Shepherd
Frequency: Daily, Monday - Sunday
Performed stat? Yes

Geisinger Wyoming Valley Medical Center

Performing laboratory: ATL+
Technical Lead: Sarah McGowan    
Frequency: Daily, all shifts    
Performed stat? No

Geisinger Shamokin Area Community Hospital

Performing laboratory: Chemistry
Technical Lead: Anthony Cole    
Frequency: Daily, all shifts    
Performed stat? Yes

Geisinger Bloomsburg Hospital

Performing laboratory: Chemistry
Technical Lead: Robyn Stokes  
Frequency: Daily    
Performed stat? Yes

Geisinger Community Medical Center

Performing laboratory: Chemistry
Technical Lead: Ann Mack, Deborah Dempsey  
Frequency: Daily, all shifts    
Performed stat? Yes

Geisinger Lewistown Hospital

Performing laboratory: Chemistry
Technical Lead: Melissa Forsythe  
Frequency: All shifts    
Performed stat? Yes

Geisinger Jersey Shore Hospital

Performing laboratory: Chemistry
Technical lead: Brenda Shuman-Johnson    
Frequency: Daily, all shifts    
Performed stat? Yes

Geisinger South Wilkes-Barre

Technical lead: Bernadette Johnson    
Frequency: Daily, all shifts    
Performed stat? Yes
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