Laboratory Medicine

Test catalogue

Porphyria Screen
Test Name Porphyria Screen by Fluorescence Scanning (Variegate Porphyria, Plasma Porphyrins Screen)
Specimen Type / Requirements Container Type = Lavender Minimum Venous Volume = 2mL Plasma (EDTA) Tube must fill to at least ½ or greater of its vacuum capacity
Specimen Handling Collection Instructions: Collect sample in EDTA tube. Protect specimen from light at all times during collection and processing. Sample should be well mixed at time of collection to prevent platelet clumping. Write your initials, date and time of collection on the collection label. Laboratory Staff Instructions: Freeze immediately after separation. Specimen must be labelled inside and outside light-protecting wrap. Stability: Stable at room temperature and frigerated for 8 hours and frozen for 90 days. Transportation: Transport at room temperature within 1 hour of collection. Sample Rejection Criteria:Lipemic, Not protected from light or not frozen, Unlabeled inside/outside light cover sheet, or samples of non sufficient quantity.
Required Documentation
Turnaround Time (TAT) 6 days	Test Utilization
Reference Value Qual. Test Negative Limit of detection: 5.0 nmol/L
Test Code MISCS	Methodology Fluorescence
Testing Location Referred Out – ON, Canada (ROICL02)	Other Information Last Updated: July 19, 2021

Porphyria Screen

Test Name

Porphyria Screen by Fluorescence Scanning (Variegate Porphyria, Plasma Porphyrins Screen)

Specimen Type / Requirements

Container Type = Lavender

Minimum Venous Volume = 2mL Plasma (EDTA)

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

Specimen Handling

Collection Instructions: Collect sample in EDTA tube. Protect specimen from light at all times during collection and processing. Sample should be well mixed at time of collection to prevent platelet clumping. Write your initials, date and time of collection on the collection label.

Laboratory Staff Instructions: Freeze immediately after separation. Specimen must be labelled inside and outside light-protecting wrap.

Stability: Stable at room temperature and frigerated for 8 hours and frozen for 90 days.

Transportation: Transport at room temperature within 1 hour of collection.

Sample Rejection Criteria:Lipemic, Not protected from light or not frozen, Unlabeled inside/outside light cover sheet, or samples of non sufficient quantity.

Required Documentation

Turnaround Time (TAT)

6 days

Test Utilization

Reference Value

Qual. Test Negative

Limit of detection: 5.0 nmol/L

Test Code

MISCS

Methodology

Fluorescence

Testing Location

Referred Out – ON, Canada (ROICL02)

Other Information

Last Updated: July 19, 2021