TEST CATALOG ORDERING & RESULTS SPECIMEN HANDLING CUSTOMER SERVICE EDUCATION & INSIGHTS
Test Catalog

Test ID: OPTU    
Orthostatic Protein, Timed Collection, Urine

Specimen Type Describes the specimen type validated for testing

Urine

Ordering Guidance

This collection process requires 2 separate urine collections within a 24-hour period.

 

Collect specimen per instructions in Orthostatic Protein Measurement 24-Hour Urine: Collection Site Instructions (T546) in Special Instructions.

Necessary Information

This collection process requires 2 separate urine collections within a 24-hour period.

-Submit start and end times for collection and 16-hour volume (required).

-Submit start and end times for collection and 8-hour volume (required).

Specimen Required Defines the optimal specimen required to perform the test and the preferred volume to complete testing

Specimens should be collected before fluorescein is given or not collected until at least 24 hour later.

 

Supplies: 2 Aliquot Tube, 5 mL (T465)

Daytime Collection

Container/Tube: Plastic, 5-mL tube

Specimen Volume: 4 mL

Collection Instructions:

1. Collect a 16-hour (daytime) urine specimen.

2. No preservative.

3. Invert well before taking 4-mL aliquot.

4. Do not over fill aliquot tube 4 mL at most.

5. Collect specimen per instructions in Orthostatic Protein Measurement 24-Hour Urine: Collection Site Instructions (T546) in Special Instructions.

 

Nighttime (Supine) Collection

Container/Tube: Plastic, 5-mL tube

Specimen Volume: 4 mL

Collection Instructions:

1. Collect an 8-hour (nighttime) urine specimen.

2. No preservative.

3. Invert well before taking 4-mL aliquot at most.

Special Instructions Library of PDFs including pertinent information and forms related to the test

Forms

1. Orthostatic Protein Measurement 24-Hour Urine: Patient Collection Instructions in Special Instructions

2. If not ordering electronically, complete, print, and send a Renal Diagnostics Test Request (T830) with the specimen.

Specimen Minimum Volume Defines the amount of sample necessary to provide a clinically relevant result as determined by the Testing Laboratory

1 mL from 16-hour (daytime) urine collection/1 mL from 8-hour (nighttime) urine collection

Reject Due To Identifies specimen types and conditions that may cause the specimen to be rejected

All specimens will be evaluated at Mayo Clinic Laboratories for test suitability.

Specimen Stability Information Provides a description of the temperatures required to transport a specimen to the performing laboratory, alternate acceptable temperatures are also included

Specimen TypeTemperatureTimeSpecial Container
UrineRefrigerated (preferred)14 days
 Frozen 30 days
 Ambient 24 hours