Test Directory

Test Code
PPSVT
Test Name
Validity, Pain Management, Urine
CPT Codes
99999
Expected Turnaround Time
1 - 5 days
Clinical Utility

Useful in assessing the integrity of urine samples prior to testing to determine if the samples have been diluted, substituted, or adulterated.

Includes:

  • Creatinine
  • pH
  • Specific Gravity
  • Nitrites
Specimen and Container Info

Preferred Specimen Type: Urine

Preferred Collection Container: Plastic Urine Container (Preservative Free)

Desired Specimen Volume: 10 mL

Processing and Submission Instructions
  • If using paper requisition, submit specimen with a completed Pain Management Drug Testing Request (HNL-56).
  • Interpretation is dependent on completing the prescribed medication history section at the bottom of the form.
  • List only the medications taken within the last 2-3 days.
Transport Instructions

Transport to the laboratory refrigerated.

Causes for Rejection

Urine specimens received in tubes containing preservatives will be rejected.

Methodology
Enzymatic Colorimetric Assay
Reference Intervals

Tested for:

Normal:

Creatinine

> or = 20 mg/dL

pH

4.2 - 8.0

Specific Gravity

1.003 - 1.035

Nitrites

<200 µg/mL

 

Performing Location
Roble Road Core Laboratory
Alternate Names
  • Validity
  • Adulterants
  • Adulteration
Testing Schedule
Routine, daily