Pathology Handbook

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Laboratory:

Haematology

Test Code:

PRS

Specimen Types:

Plasma

Container Types:

Sodium Citrate

Collection & Request Instructions:

Add exactly 2.7 mL of blood & mix by inversion.

Test not valid if patient receiving warfarin therapy or with acute thrombotic event.

Specimens cannot be analysed or re-analysed greater than 4 hours after collection.

Transport Instructions between Sites and/or Laboratories:

Room Temperature

Additional Notes:

Reference Range: Male 65-146 %, Female 48-129 %