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Test Code 8848 Phosphorus (Urine)

Purpose

To determine phosphorus levels. High urinary phosphorus (ie, increased renal losses) occurs in primary hyperparathyroidism, vitamin D deficiency, Fanconi syndrome, renal tubular acidosis, rickets, osteomalacia, or diuretic use. Low phosphorus is found in hypoparathyroidism, pseudohypoparathyroidism, vitamin D intoxication.

 

Performing Laboratory

Copley Hospital

 

Methodology

Bichromatic Endpoint

 

Specimen Requirements

Specimen Type: Urine (24-Hour)

Container/Tube: Plastic Container
Specimen Volume: Entire 24-Hour Collection

 

Collection Instructions:

1. For 24 Hour Urines: Refrigerate during collection

     and follow instructions for “24 Hour Urine Collection”

     under “Specimen Collection and Handling” within the

     links menu on the left side of the screen.)

2. Label specimen with patient’s full name, date of birth,

    date & time of collection (Both Start & End Times for

    24-Hour Urines) and person collecting.

3. Refrigerate specimen during transport.

 

Reference Values

Normal: 0.34 - 1.00  g / 24 Hours

 

Stability

Refrigerated: 7 Days

 

Day(s) Performed

Daily

Analytical Time: 1 Day

 

Aliases

Phosphorus (Urine)

Phosphorus

24-Hour Urine

Urine

 

Test Classification and CPT Coding

81050 - Urine Timed Measurement

84105 - Phosphorus