A young woman with type 1 von Willebrand disease presents for a dilatation and curettage. She is a Jehovah's Witness. You consider administering intravenous desmopressin in an attempt to reduce haemorrhage. Which of the following statements regarding desmopressin is FALSE?
A. it is a synthetic substance and is acceptable to Jehovah's Witnesses
B. it is likely to reduce haemorrhage in this patient
C. it should be given 30 minutes prior to surgery as an infusion
D. its duration of effect is approximately 5 days
E. the intravenous dose is 0.3 mcg.kg-1
Answer: D