| Methodology: |
Ion Exchange Chromatography
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| Performed: |
Mon-Fri
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| Reported: |
3-7 days
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| Specimen Required: |
Collect: 24-hour or other timed urine collections are also acceptable. Refrigerate 24-hour/timed specimens during collection.
Storage/Transport Temperature: 10 mL aliquot from a well-mixed random, 24-hour, or timed collection, frozen. (Min: 3 mL) Submit specimen in an ARUP Standard Transport Tube.
Remarks: CRITICAL FROZEN. As soon as possible after urine has been obtained, mix the collection well and freeze. Avoid dilute urine when possible. Clinical information is needed for appropriate interpretation. Additional required information includes age, gender, diet (e.g., TPN therapy), drug therapy, and family history. Biochemical Genetics Patient History Form is available on the ARUP Web site or by contacting ARUP Client Services. Record total volume and collection time interval on transport tube and test request form.
Unacceptable Conditions: Ambient or refrigerated specimens.
Stability (collection to initiation of testing): Ambient: Unacceptable; Refrigerated: Unacceptable; Frozen: 1 month
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