UW Hospital and Clinics Lab Test Directory
| Test Name: |
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S-Sulfocysteine, Urine
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| Test Code(s): |
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USSULF / HCUSSULF
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| CPT Code(s): |
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82127, 82570
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| Methodology: |
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Tandem Mass Spectometry
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| Clinical Significance: |
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Useful in diagnosis of patients with both Molybdenum cofactor deficiency (MoCoD) and isolated sulfite oxidase deficiency (ISOD).
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| Testing Site: |
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Testing will be sent to an approved reference laboratory.
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| Days Performed: |
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Once a week.
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Specimen Requirements
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| Specimen: |
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Urine
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| Collection Instructions: |
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Random urine collection only. No preservative necessary.
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| Collection Container: |
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Preferred: Sterile screw cap container
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| Collection Volume: |
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Preferred: 1 mL
Pediatrics: 0.3 mL
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| Specimen Transport: |
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Immediately after specimen collection is completed, transport specimen to UWHC Core Laboratory (B4/220). If transport is delayed, freeze specimen.
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| Outreach Specimen Transport: |
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Transport frozen specimen to UWHC Core Laboratory (B4/220) on dry ice.
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| Stability: |
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Ambient: Not acceptable
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Interpretation
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MoCoD Deficiency ISOD
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