Factor V Leiden Mutation

Collect venous blood into the laboratory-specified EDTA tube, fill adequately and mix by gentle inversion to prevent clotting. Keep the primary tube securely capped and clearly labelled; do not transfer blood between tubes after collection. Place it upright in a rigid secondary container or sealed biohazard bag with absorbent material and protect it from excessive heat. For molecular/genetic testing, avoid contamination and follow any kit-specific temperature or courier requirements supplied by the receiving laboratory. For Factor V Leiden Mutation, use packaging and preservation compatible with PCR/genotyping; if the receiving laboratory supplies a dedicated collection kit, bottle or transport medium, that kit takes precedence over general packaging guidance.

7 Days

Mon 3 - Fri 2

For Factor V Leiden Mutation, confirm patient identity carefully and provide the clinical indication and relevant family history where available. Genetic testing may require informed consent and, depending on the purpose, pre- or post-test genetic counselling. A negative result does not exclude every possible genetic cause unless the requested assay covers them. Do not collect from a recent transfusion or transplant recipient without informing the laboratory, because donor cells may affect some blood-based genetic analyses.