Galactokinase, Blood (Referred Out) - Saskatoon
Discipline
Biochemistry
Specimen Information
Specimen types accepted
- Whole blood
Specimen collection container
- Preferred collection container: Dark Green (Lithium Heparin) 4.0mL
- Alternative collection container: Dark Green (Sodium Heparin) 4.0mL
- Alternative collection container: Lavender (EDTA) 4.0mL
Required volume
- Optimal volume: 4.0 mL whole blood
- Minimum volume: 2 mL whole blood
(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.)
Transport and stability
- Stable for 72 hours at room temperature
- Stable for 10 days at refrigeration temperature
Rejection criteria
- Gross hemolysis or lipemia
- Pathology and Laboratory Medicine Acceptance and Rejection Criteria
Testing Information
Relevant clinical history
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It is important to notify the laboratory if the patient has been transfused prior to specimen collection. The results of testing performed in erythrocytes are invalid following a transfusion, including analysis of enzymes, biochemical phenotyping, or galactose-1-phosphate
Clinical interpretation
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Result interpretation should be correlated with clinical and other laboratory findings.
Performance
Days/times performed
Availability |
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Testing site |
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Maximum laboratory time
- 16 days maximum turn around time by testing laboratory
Other information
- Diagnosis of galactokinase deficiency, the second most common cause of galactosemia
Last Updated: October 9, 2024