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Test Code PRCON Protein, Total, Random, Urine


Specimen Required


Only orderable as part of a profile. For more information see:

ORTHP / Orthostatic Proteinuria, Random, Urine

 

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

Container/Tube: Plastic, 5-mL tube

Specimen Volume: 4 mL

Collection Instructions:

1. This is a nighttime (supine) collection.

2. Void immediately prior to lying down.

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

4. Upon awaking in the morning, the patient should immediately void into the specimen cup.

4. No preservative.

5. Invert well before taking 4-mL (maximum) aliquot.


Useful For

Measurement of total protein for the assessment of orthostatic proteinuria

Method Name

Only orderable as part of a profile. For more information see:

ORTHP / Orthostatic Proteinuria, Random, Urine

 

Turbidimetry

Reporting Name

Protein, Total, Random, U

Specimen Type

Urine

Specimen Stability Information

Specimen Type Temperature Time Special Container
Urine Refrigerated (preferred) 14 days
  Frozen  30 days
  Ambient  24 hours

Reject Due To

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

Reference Values

Not established

Interpretation

First-morning urine protein-to-creatinine ratio of less than 0.20 mg/mg creatinine supports the diagnosis of orthostatic proteinuria, while a result greater than 0.20 mg/mg creatinine does not support this diagnosis.

Further investigation into other etiologies for proteinuria may be warranted.

Day(s) Performed

Monday through Sunday

Report Available

Same day/1 to 7 days

Performing Laboratory

Mayo Clinic Laboratories in Rochester

Test Classification

This test has been cleared, approved, or is exempt by the US Food and Drug Administration and is used per manufacturer's instructions. Performance characteristics were verified by Mayo Clinic in a manner consistent with CLIA requirements.

CPT Code Information

84156

LOINC Code Information

Test ID Test Order Name Order LOINC Value
PRCON Protein, Total, Random, U 2888-6

 

Result ID Test Result Name Result LOINC Value
PRCON Protein, Total, Random, U 2888-6