COVID-19 information for patients and families

To help protect our people, patients and communities, we are screening everyone who enters our main hospital buildings. Some of our entrances may be closed or have reduced access.

Please check our COVID-19 information page for more updates before coming to our sites.

Text size: a a a

Laboratory Medicine

Test catalogue


Test Name


Lavender Tube Specimen Type / Requirements

Container Type = Lavender

Minimum Venous Volume = 2 mL whole blood

Tube must fill to at least ½ or greater of its vacuum capacity

Specimen Handling

Collection Instructions: Collect sample in ACD or lavender top and send to core lab. Sample should be well mixed at time of collection to prevent platelet clumping. Ensure both sample and requisition are labelled properly. Specify type of HLA when ordering (See attached requisition). Write your initials, date and time of collection on the collection label.

Laboratory Staff Instructions: If sample cannot be send within 24 hours of collection, store and send cold.

Stability: Stable refrigerated for 5 days.

Transportation: Send at room temperature as soon as possible.

Sample Rejection Criteria: Plasma, clotted sample, Grossly hemolyzed samples, Unlabeled or Not Sufficient Quantity Samples will be rejected.

Required Documentation

Turnaround Time (TAT)

10 days

Test Utilization

Reference Value


Test Code




Testing Location

Referred Out – ON, Canada (ROUNHH07)

Other Information

Last Updated: June 06, 2019