Alberta Precision Laboratories

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Organization:

Alberta Precision Laboratories

Message Alert:

PLEASE NOTE: This Test Directory is in an interim state and due to changes pertaining to the DynaLIFE transition, performing site for routing has not been updated. Please refer to Laboratory Information System for appropriate routing.

Test Name/Synonym:

Hypokalemic Periodic Paralysis (Synonyms: HOKPP, CACNA1S, SCN4A)

Test Includes:

Gene: CACNA1S, SCN4A

Collection Alert:

Unopened dedicated tubes (do not share) are required for Molecular Genetics testing.

LABID (Connect Care):

LAB4257

Test Code:

CALGARY ZONE	MDLBL IN MDL TEST NAME PROMPT ENTER NAME OF THE TEST OR STORE SAMPLE
EDMONTON ZONE	HOKPP-;APPEND SPECIMEN TYPE
OTHER ZONES	NOT SPECIFIED

Specimen Type:

Blood, Tissue, DNA, Other

Specimen Source:

Indicate a specimen source.

Primary Container:

Lavender top EDTA

Alternate Containers:

Microcollection EDTA
Sterile polypropylene centrifuge tube
DNA tube
Sterile container

Minimum Collection Volume:

See Specimen Collection Requirements

Specimen Collection Requirements:

For Blood Specimen (peripheral or cord blood)
EDTA tubes should be completely full, 2/3 full at minimum, testing may be affected by partial draw

For Patients over 20 kg: 2 EDTA tubes each containing 3.0 mL of blood
For Patients up to 20 kg: 2 EDTA tubes each containing 2.0 mL of blood
For Neonates: 1 EDTA containing a minimum of 0.5 mL of blood

For Postnatal (cord blood)

A maternal blood sample must be collected for maternal cell contamination studies.

For Other Tissue Specimens

For Fresh or Frozen Tissue specimens: Submit a minimum of 20 mg in a sterile container with NO fixative.

For Extracted DNA

Submit 10ug @ >100ng/uL.

Test Resources:

Pre-test Counselling Information-Genetic and GenomicTesting

All requests MUST be submitted on:

Molecular Genetics Requisition

Please ensure all required information, including patient's clinical history/indication, is provided on the requisition.

Stability and Storage:

Room temperature: For all specimen types (except frozen tissue) if being shipped on same day of collection (preferred).
Refrigerated: If shipping is delayed.
Frozen: Frozen tissue specimens at -20^oC to -80^oC.

Processing:

Do not centrifuge or aliquot specimens.

Transportation:

Transport all specimen types (except frozen tissue) at room temperature.
Specimens must not freeze in transit.

Transport frozen tissue specimens with adequate amounts of dry ice to keep specimen frozen.
Specimens must not thaw in transport.

Specimens, should be received by the Molecular Genetics Laboratory:

Within 5 days of date of collection for Blood and Extracted DNA specimens.
Within 24 hours of date of collection for Tissue specimens.
And must include the original paper requisition and accompanying documentation

Submitting to Molecular Genetics North

Transport specimens (except extracted DNA) to Molecular Genetics Laboratory via UAH Specimen Control WMC 4B2.10.
For Extracted DNA samples only, transport specimens to Molecular Genetics Laboratory via UAH Shipping Receiving, UNIVERSITY OF ALBERTA HOSPITAL, 8440 112 STREET, Room: 8-26 MSB, EDMONTON, T6G 2B7

Blood, Tissue, and Extracted DNA specimens

Are received Mon – Fri: 07:30 to 15:00.
If received after 15:00, will be processed on the next working day.

If Tissue specimens are sent from outside of Edmonton for testing in Molecular Genetics North, please call the laboratory at 780-407-1434 or fax shipping information to 780-407-1761 to inform the lab of expected arrival times and mode of transport.

Method:

Sanger Sequencing

Method and Interpretation of Results:

CACNA1S gene (exons 11, 21 and 30) and SCN4A (exons 12 and 18).

Routine Turn Around Time:

Routine: 6 to 8 weeks, Stat: 1 to 2 weeks

Reference Interval:

Interpretation provided on report.

Testing Area:

Molecular Genetics

Performing Site:

University of Alberta Hospital

Contact Comments:

For additional information refer to Genetics and Genomics webpage or contact:
Molecular Genetics North: 780-407-1434 (phone), 780-407-1761 (fax)

Last Updated On:

Monday, June 15, 2020

Date of Last Review:

Aug 1 2022 12:00AM