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Test Code PHOS.1 PHOSPHORUS

Additional Codes

N.PHOSPHOROUS

Methodology

Automated Chemistry Analyzer

Specimen Requirements

Serum or Plasma

Container: SST or Green top Lithium heparin

Specimen Collection: 1 mL (minimum 0.5 mL)

  1. Allow specimen to clot completely if a serum tube (SST) was used for the draw.

  2. Separate serum (SST) or plasma (Lithium Heparin) from cells within 24 hours and transport refrigerated. If red top tube is collected, separate serum from cells within 2 hours and place in separate plastic tube and cap immediately.

  3. Properly label tube with patient's name, DOB, requisition number and type of tube sample drawn from i.e. GREEN.

Specimen Transport/Stability

Refrigerated: 24 hours on gel, 7 days poured off

Specimen Rejection

1. EDTA, sodium fluoride-potassium oxalate or citrate plasma 

Maximum Laboratory Time

24 hours

Reference Ranges

Phosphorus               mg/dL  
Newborn           4.0 - 10.0
1 mo           4.0 - 6.0
10 yrs           3.5 - 5.5
16 yrs           2.3 - 4.7

 

Day(s) Test Set Up

Daily

Test Classification and CPT Coding

84100