D-Lactate, Urine (Sendout)
General Information
- Lab Name
- Lab Code
- 211
- External Test Id
- DLAU
- Description
Useful For: Preferred test for diagnosing D-lactate acidosis, especially in patients with jejunoileal bypass and short-bowel syndrome.
- Synonyms
- D Lactate, D-Lactate, DLAU, Urine
- Components
Interpretation
- Method
Gas Chromatography-Mass Spectrometry (GCMS) Stable Isotope Dilution Analysis
- Reference Range
- Ref. Range Notes
Reference Range: 0-0.25 mmol/L Interpretation: Increased levels are diagnostic.
- Interferences and Limitations
Cautions: The test is for D-lactate, a product of bacterial overgrowth in the gastrointestinal tract. It should not be confused with L-lactate, which accumulates in some metabolic acidosis.
Ordering & Collection
- Specimen Type
- Urine
- Collection
-
Collect a Random or 24 Hour Urine in a preservative-free container.
- Handling Instructions
Outside Laboratories: Aliquot urine to a separate, screw-top vial, allowing room for expansion. Freeze urine at -20°C.
Stability: Frozen (preferred): 90 days; Refrigerated: 90 days; Ambient: 90 days.
- Quantity
-
Requested: 2.5 mL urine
Minimum: 0.5 mL urine
Processing
- Receiving Instructions
- Timed Collections: Mix specimen well. Measure and record total volume. Note the collection interval and total volume on the requisition (required).
- Aliquot urine to a separate plastic screw-capped vial, leaving room for expansion. Freeze urine at -20°.
Login: SEND1-;FREEZE
- RSNDT1: MAYO
- RSTYP1: <Select appropriate response below based on specimen type received.>
- URN-RAND
- URN-;(INT:##, TV:####)
- RTSRQ1: ;D Lactate (Mayo Test DLAU)
Sendouts:
- Order Mayo Test: DLAU.
Stability: Frozen (preferred): 90 days; Refrigerated: 90 days; Ambient: 90 days.
- Misc Sendout
Performance
- Lab Department
- Frequency
- Monday, ThursdayAnalytic time: 4 days
- Available STAT?
- No
- Performing Location(s)
-
Sendout Mayo Clinic Laboratories
800-533-1710200 First Street Southwest
Rochester, MN 55901
Billing & Coding
- Billing Comments
CPT: 83605