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Test Code CHOU Carbohydrate, Urine

Reflex Tests

Test ID Reporting Name Available Separately Always Performed
GALU Galactose, QN, U Yes No

Performing Laboratory

Mayo Clinic Laboratories in Rochester

Specimen Type

Urine


Ordering Guidance


This test is not appropriate for evaluation of an abnormal newborn screen for galactosemia. For those cases, order GCT / Galactosemia Reflex, Blood and consider GAL1P / Galactose-1-Phosphate, Erythrocytes and GATOL / Galactitol, Quantitative, Urine.



Specimen Required


Supplies: Urine Tubes, 10 mL (T068)

Container/Tube: Plastic, 10-mL urine tube

Specimen Volume: 5 mL

Collection Instructions: Collect an early-morning (preferred) random urine specimen.


Specimen Minimum Volume

1 mL

Specimen Stability Information

Specimen Type Temperature Time Special Container
Urine Frozen (preferred) 21 days
  Refrigerated  21 days

Reference Values

Negative

If positive, carbohydrate is identified.

Day(s) Performed

Tuesday

CPT Code Information

84377-Carbohydrate

82760-Galactose (if appropriate)

Report Available

8 to 15 days

Specimen Retention Time

14 days

Reject Due To

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