PatientsVisitorsLocations & ServicesAbout the RegionJoin Our TeamPhysicians
Find:  Locations | Services
Pathology and Laboratory Medicine HomeTest and Services CatalogueTransfusion Medicine Product CataloguePolicy and ProcedureJob AidsSpecimen Collection and TransportRequisitionsAntibiogramsGenetic Testing and Molecular GeneticsMicrobiology EssentialsTransfusion EssentialsReference RangesLaboratory SuppliesAcute Care SCM GuidelinesContact InformationPhysician Access to Patient ResultsOpening A New Clinic
Pathology and Laboratory Medicine
Test Catalogue

​Lactose Tolerance

Chemistry

​Ordering Recommendation

  • ​Lactose Tolerance must be pre-booked with the collection site
  • Patient are recommended to fast for 10 to 14 hours (maximum 16 hours)

​Specimen Requirements​

Type​
  • ​Plasma
​Container
​Collection Procedure
  • ​Collect fasting blood glucose sample
  • If patient is an adult administer 50 gram lactose drink
    • If patient is ≤ 12 years old calculate the correct dosage of lactose drink to give
  • Patient should remain at collections site and rest during testing period
    • They should not eat or drink anything other than water during the testing period
  • Collect blood glucose samples at 30, 60, and 90 minutes from the time patient has finished the lactose drink
​Required Volume
  • ​Optimal Volume: 4.5 mL Full collection tube
  • Minimum Volume: 1.0 mL
    (Submitting the minimum volume makes it impossible to repeat the test or perform confirmatory/reflex testing. In some situations, a minimum volume may require a second collection.)
  • Pediatric Volume
​Stability/Storage
  • ​1 hours on cells
  • 3 days at 2 - 8°C
Grounds for Rejection​

Testing Information​ ​

Availability​
  • ​Collection available while testing sites are open
  • Testing available 24 hours a day
Testing Site​
  • ​SPH, RUH, SCH
  • Rural-Humboldt
Results Reporting​
  • In hospital reported within 2 hours
  • Community urgent and inter-hospital reported within 4 hours
  • Community routine reported within 24 hours
  • Critical results ≤ 2.5 and ≥ 25.0 mmol/L will be phoned
​Methodology
  • ​Hexokinase method (photometric)
  • Rural-colorimetric
​Specimen Retention
  • ​3 days
SHR LIS Test Code​
  • ​LACTO (For Laboratory Use Only)

 

​If you choose to print this information, it is valid only on date of print.

Laboratory Controlled Document LSM-166 v3

Last Modified: Tuesday, February 2, 2016 |
Questions or feedback about this page?