Random Urine, Glucotetrasaccharides Build info

Synonyms

• GLUCOTETRASACCHARIDES, RANDOM, URINE
• GLUTETSACU
• HEXOSE TETRASACCHARIDES
• GLUCOSE TETRASACCHRIDES
• HEX4
• LAB11693

Short Name

GLUCOTETRASACCHARIDES, RANDOM, URINE

Procedure Master Number

LAB11693

Procedure ID

NWH_698288373

Clinical Info

Diagnosing Pompe disease, when used in conjunction with acid alpha-glucosidase enzyme activity assays and molecular genetic analysis of the GAA gene

Monitoring Pompe patients on enzyme replacement therapy
May support the diagnosis and monitoring of other glycogen storage disorders; however, glucotetrasaccharide (Glc4) excretion appears to be less consistently elevated in glycogen storage disorders other than Pompe disease
                   This test is not useful for carrier screening

Specimen Type

Urine

Container

Urine Tube

Collection Instructions

Container/Tube: Plastic Urine Collection Tube
Specimen: 3 mL Random Urine (1mL min)

Transport Instructions

Refrigerated

Specimen Stability

14 Days Room Temperature
28 Days Refrigerated
87 Days Frozen

Methodology

Liquid Chromatography-Tandem Mass Spectrometry (LC-MS/MS)

Days Performed

TAT: 5-11 Days

Performing Laboratory

Mayo Medical Laboratories

CPT

82542
82570

PDM

215299

Results