Pathology Handbook

Collection & Request Instructions

In cases where prolonged apnoea follows suxamethonium administration an assessment of atypical cholinesterase can be made using the Dibucaine and Fluoride Numbers. Such assessment should not be made until 24 hours after suxamethonium administration.

Avoid haemolysis.

Note Additional Collection Instructions:

Pathology Queensland prefer to receive BOTH a SST or Lithium Heparin Plasma specimen PLUS a 4 mL EDTA whole blood sample.(EDTA specimen must be sent unspun).

In cases where prolonged apnoea follows suxamethonium administration an assessment of atypical cholinesterase can be made using the Dibucaine and Fluoride Numbers. Such assessment should not be made until 24 hours after suxamethonium administration.

Avoid haemolysis.

Note Additional Collection Instructions:

Pathology Queensland prefer to receive BOTH a Lithium Heparin Plasma (no gel or gel) specimen PLUS a 4 mL EDTA whole blood sample. (EDTA specimen must be sent unspun).

Preferred Specimen Type

Serum
Plasma

Blood

Preferred Container Type

SST
Lithium Heparin (with Gel)

EDTA 4 mL
and
Lithium Heparin (without Gel)