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5308U: Phosphorus 24hr Urine Print View
Phosphorus 24 Hr Urine CALC  Male: 360 - 1600
Female: 170 - 1200 
mg/24hr 
Total Volume     mL 

PRIMARY
1 Urine 24 hour 10 (2) mL   Refrigerated - 7 Day(s)/Frozen - 28 Day(s)/Room Temperature - 48 Hour(s)  
ALTERNATE
  Urinalysis Transport Tube   Frozen - 6 Month(s)/Room Temperature - 6 Month(s)/Refrigerated - 6 Month(s)  
  Urine HCL Additive   Room Temperature - 6 Month(s)/Refrigerated - 6 Month(s)/Frozen - 6 Month(s)  

Phosphorus is present in many foods with a mean intake of approximately 1500 mg per day for adult males and about 1000 mg per day for adult females. Absorbed phosphate, under the influence of parathyroid hormone, is readily excreted in the kidney. Measurement of urinary phosphorus generally reflects dietary intake; hence, day-to-day excretion may show considerable variation.

Refrigerate during and after collection. Collect urine with 25 mL of
6N HCL to maintain a pH < 3. Do not include first morning specimen;
collect all subsequent voidings. The last sample collected should be
the first morning specimen voided the following morning at the same
time as the previous morning's first voiding. Specify 24-hour total
volume on container and test requisition.
Setup Schedule
Monday-Saturday

Reported (Analytical Time)
Same day

CPT Code
84105

The CPT codes provided 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 payer being billed.

Notes
Transport Temperature:
Preserved: Room temperature
Unpreserved: Refrigerated
Methodology: Spectrophotometry Also availible Phosphorus Urine Random, #5308UR.
Specimen Requirements:
Preferred:
10 mL (2mL minimum) urine aliquot from a well mixed 24 hour collection collected in a plastic urine container
Acceptable:
Urine aliquot from a 24 hour collection in a urinalysis transport tube (yellow-top, blue fill line, preservative tube)






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