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HelpTest Code LAB1231940 Chyluria Screen, Random, Urine
Performing Laboratory
Mayo Clinic Laboratories in Rochester
Reporting Name
Chyluria Screen, Random, USpecimen Type
UrineNecessary Information
Indicate patient's age and sex.
Specimen Required
Patient Preparation: Before specimen collection, the patient should not ingest foods or beverages rich in vitamin C or take vitamin C supplements.
Supplies: Urine Container, 60 mL (T313)
Container/Tube: Plastic, 60-mL urine bottle
Specimen Volume: 15 mL
Collection Instructions: Collect a first-morning, random urine collection.
Reject Due To
All specimens will be evaluated at Mayo Clinic Laboratories for test suitability.Specimen Stability Information
| Specimen Type | Temperature | Time |
|---|---|---|
| Urine | Frozen (preferred) | 10 days |
| Refrigerated | 10 days | |
| Ambient | 4 hours |
Specimen Minimum Volume
15 mL
Day(s) Performed
Monday through Friday
Specimen Retention Time
6 daysReport Available
2 to 5 daysReference Values
No lipoproteins present
Useful For
Aiding in the diagnosis of chyluria (galacturia)
CPT Code Information
82664-Electrophoretic technique, not elsewhere specified (Chylomicrons and lipoproteins)
84311-Spectrophotometry, analyte not specified (Cholesterol)
84478-Triglycerides
LOINC Code Information
| Test ID | Test Order Name | Order LOINC Value |
|---|---|---|
| CSU | Chyluria Screen, Random, U | 95808-2 |
| Result ID | Test Result Name | Result LOINC Value |
|---|---|---|
| CHOLU | Cholesterol, Random, U | 14444-4 |
| TRIGU | Triglycerides, Random, U | 14450-1 |
| CMTCS | Interpretive Comment | 95807-4 |
Method Description
This test involves 2 steps, centrifugation and lipoprotein electrophoresis, to detect the visual presence of chylomicrons. The specimen also is analyzed for cholesterol and triglycerides using an enzymatic colorimetric method. The results of the cholesterol, triglycerides, and lipoprotein electrophoresis are used together to determine whether the sample is chyluria.(Unpublished Mayo information)