Sign in →

Test ID SSCTU S-Sulfocysteine Panel, Random, Urine


Ordering Guidance


This is the recommended test when clinical features are suggestive of, or when molecular testing results suggest, molybdenum cofactor deficiency, isolated sulfite oxidase deficiency, and hereditary xanthinuria. This test includes measurement of relevant purines in addition to urine S-sulfocysteine and uric acid. If the clinical features are suggestive of a purine and pyrimidine metabolism disorder or are nonspecific, order PUPYU / Purine and Pyrimidines Panel, Random, Urine.

 

This test will be canceled if ordered with PUPYU.



Necessary Information


Patient's age is required.



Specimen Required


Supplies: Urine Tubes, 10 mL (T068)

Container/Tube: Plastic, 10-mL urine tube

Specimen Volume: 3 mL

Collection Instructions:

1. Collect a random urine specimen.

2. No preservative needed.


Secondary ID

607001

Useful For

Diagnosis of molybdenum cofactor deficiency, isolated sulfite oxidase deficiency, and hereditary xanthinuria

 

Monitoring patients with molybdenum cofactor deficiency or isolated sulfite oxidase deficiency who are on treatment

Specimen Type

Urine

Specimen Stability Information

Specimen Type Temperature Time
Urine Frozen 90 days

Reject Due To

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

Reference Values

Analyte

0-3 years

4-6 years

7-12 years

13-18 years

>18 years

Hypoxanthine

≤65

≤30

≤30

≤30

≤30

Xanthine

≤54

≤21

≤35

≤15

≤20

Uric Acid

350-2500

200-2000

200-1400

150-700

70-700

S-Sulfocysteine

≤11

≤5

≤5

≤5

≤5

 

All results reported as mmol/mol creatinine

Day(s) Performed

Tuesday, Thursday

Report Available

3 to 7 days

Performing Laboratory

Mayo Clinic Laboratories in Rochester

CPT Code Information

82542