D-lactate, urine-994

Test info

  
D-lactate, urine
  
994
  
LAB994
  
MSO
  

Preferred test for diagnosing D-lactate acidosis, especially in patients with jejunoileal bypass and short-bowel syndrome.

Specimen

  
Urine, random
  
  
2.5 mL
  
0.5 mL
  
  1. Pour off a 2.5mL (minimum 0.5mL) aliquot into a Transfer vial/tube with cap - 12mL (LabCorp), labeled as urine
  2. Freeze
  
Urine, 24 hour
  
  
2.5 mL aliquot of a 24-hour urine collection
  
  
  1. Mix 24 hour collection well
  2. Measure and record the total volume
  3. Pour off a 2.5mL (minimum 0.5mL) aliquot into a Transfer vial/tube with cap - 12mL (LabCorp), labelled as urine
  4. Freeze
  

Transfer vial/tube with cap - 12mL (LabCorp)

  

Total volume for 24-hour collections

  

Frozen (preferred) - 90 days

Refrigerated - 90 days

Ambient - 90 days

  
1 month

Performance

  
Mayo Clinic Laboratories (DLAU) via LabCorp (284037): R-NX
  
Mo, Th
  
3-6 days
  

Gas Chromatography-Mass Spectrometry (GCMS) Stable Isotope Dilution Analysis

Clinical and Interpretive info

  

0.0 - 0.25 mmol/L

  
The test performed is for D-lactate. This is a product of bacterial overgrowth in the gastrointestinal tract. It should not be confused with L-lactate, which accumulates in some metabolic acidosis.

Billing

  
83605

Tracking

  
06/13/2022
  
10/05/2023
  
10/05/2023