Carbohydrate, urine

Alphabetical Test listing

Carbohydrate, urine-994

Test name:

Carbohydrate, urine

Test number:

994

Excellian order number:

LAB994

Abbreviation:

MSO

Alternate names:

Adenylosuccinate lyase efficiency
Fructose
Lactose
Maltose
Monosaccharide screening
Saccharides
Succinylnucleoside screening
Sucrose
Reducing Substance
Xylose

Useful for:

Screening for conditions associated with increased excretion of fructose, galactose, and xylose

Limitations:

This test is not recommended as a follow up test for abnormal newborn screening for galactosemia.

Specimen type:

Urine, random

Collection container:

Screw cap plastic container (non sterile)

Volume:

5.0 mL

Minimum volume:

1.0 mL

Collection instructions:

Collect an early-morning (preferred) random urine specimen

Processing instructions:

Transfer 5mL of urine to a Urine transport vial/tube - 10mL (Mayo T068)
Freeze

Transport container:

Urine transport vial/tube - 10mL (Mayo T068)

Transport and stability:

Frozen (preferred) - 21 days

Refrigerated - 21 days

Performing lab:

Mayo Clinic Laboratories (CHOU): R-NX

Days set up:

TAT:

8 - 15 days

Method:

Thin-layer chromatography (TLC), qualitative

Reference ranges:

Negative

If positive, carbohydrate is identified.

CPT codes:

84377 - Carbohydrate

Additional CPT codes (if appropriate):
82760 - Galactose
82945 - Glucose

Date created:

01/13/2016

Revised date:

01/02/2024

Review date:

01/02/2024