Lab Dept:

Urine/Stool

Test Name:

PH URINE BY METER

General Information

Lab Order Codes:

UPH

Synonyms:

Urine pH by Meter

CPT Codes:

83986 – pH, body fluid, except blood

Test Includes:

pH of urine by meter

Logistics

Test Indications:

The urinary pH, in correlation with a patient’s condition provides valuable information for assessing and managing disease.

Lab Testing Sections:

Chemistry

Phone Numbers:

Minneapolis:

Saint Paul:

612-813-6280

651-220-6550

Test Availability:

Daily, 24 hours

Turnaround Time:

4 hours

Special Instructions:

Send to lab within 30 minutes of collection. See Sample Rejection.

Specimen

Specimen Type:

Urine

Container:

Urine cup or sterile, covered container

Draw Volume:

Submit entire specimen

Processed Volume:

2 mL preferred (Minimum: 0.5 mL) urine

Collection:

Collect in clean, sterile, coverable container

Special Processing:

Deliver to laboratory immediately, pH will change in time. Specimens must be tested within 4 hours of collection.

Mpls Staff: Immediately centrifuge specimen to remove cellular material and transport at 4 – 8ºC to St. Paul lab via courier.

Patient Preparation:

None

Sample Rejection:

Insufficient volume; specimens more than 4 hours old; highly cellular specimens; mislabeled or unlabeled specimens

Interpretive

Reference Range:

4.5 – 8

Critical Values:

N/A

Limitations:

N/A

Methodology:

Orion pH Meter

References:

Tietz, Norbert (1995) Clincial Guide to Laboratory Tests, 3^rd edition, WB Saunders Co, pp 258-261

Jacobs and DeMott Laboratory Test Handbook (2001) 5^th Edition, Lexi-comp Inc.

Color Atlas of Urinary Sediment (2010) CAP Press, College of American Pathologists, Northfield, IL, 60093

Updates:

7/1/2004: Method changed from pH Testr 3^™ to Orion pH Meter. Note minimum volume differences between campuses. Change in reference range previously 5.0 – 8.0.
8/28/2005: Preferred Draw volume previously listed as 5.0 mL.
3/5/2012: Change in reference range, previously listed as 4.5 – 7.5.