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Phosphorus

CPT/HCPCS 84100
Order Code CH169
Turnaround Time 24-48 hours
Test Includes

Phosphorus

Specimen Requirements
Specimen Source
Serum
Transport Container
(Specimen Container)

SST (Tiger Top)

Preferred Specimens
Serum
Collection Instructions
(Transport Temperature)
Transport at Room Temperature
Specimen Stability
Temperature Period
Room temperature 24 hours
Refrigerated 4 days
Frozen 30 days
Reject Criteria

Gross hemolysis
Plasma

Test Details
Methodology
Spectrophotometry
Clinical Significance

Diagnosis and management of a variety of disorders including bone, parathyroid, and renal disease Hypophosphatemia may have 4 general causes: shift of phosphate from extracellular to intracellular, renal phosphate wasting, loss from the gastrointestinal tract, and loss from intracellular stores. Hyperphosphatemia is usually secondary to an inability of the kidneys to excrete phosphate. Other factors may relate to increased intake or a shift of phosphate from the tissues into the extracellular fluid.

Reference Ranges

4 – 6.9 mg/dL (≤ 24 Months)
3 – 6 mg/dL (2 – 12 Years)
2.5 – 4.5 mg/dL (> 12 Years)

Alternative Names
Phosphate