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Test Code DXAD D-Xylose (Dosing and Specimen Collection)

Methodology

Note: This is only for the purpose of charging for dosing and specimen collection.

Performing Laboratory

St. Luke's Hospital Cedar Rapids

Specimen Requirements

Infants

1. Infants must be fasting 4 hours.

2. Dose is 0.5 g of D-Xylose/kg of patient weight.

3. 1 mL of serum (fasting specimen and a 1 hour post dose specimen).

Note: Patient’s age, dose, and times of draw are required for processing.

 

Children (10 kg weight to 9 years old)

1. Children must be fasting 6 hours.

2. Dose is 5 g of D-Xylose.

3. 1 mL of serum (fasting specimen and a 1 hour post dose specimen).

Note: Patient’s age, dose, and times of draw are required for processing.

 

Adults

1. Adults must be fasting 8 hours, and remain fasting during the 5 hours of the urine collection. (No blood is drawn for adults.)

2. Dose is 5 g of D-Xylose.

3. Submit 5 mL of urine.

Note: Patient’s age, dose, and times of draw are required for processing.

Reference Values

Not applicable

Day(s) Test Set Up

Monday through Friday

Test Classification and CPT Coding

99070