Author Question: A prescriber is considering prescribing the amiodarone derivative dronedarone Multaq for a patient ... (Read 31 times)

imanialler · **on:** Jul 23, 2018

A prescriber is considering prescribing the amiodarone derivative dronedarone Multaq for a patient with atrial flutter. The nurse should be concerned about which of the following?

a. History of asthma
b. History of hypothyroidism
c. PR interval of 260 msec
d. QT interval of 520 msec

Question 2

A nurse is performing a preoperative drug history on a patient who is admitted to the hospital for surgery.

To evaluate the risk of hemorrhage, the nurse will ask the patient about antiplatelet and anticoagulant medications as well as which dietary supplement? a. Coenzyme Q-10
b. Ginkgo biloba
c. Ma Huang (ephedra)
d. St. John's wort

stallen · **Reply #1 on:** Jul 23, 2018

Answer to Question 1

D
Because dronedarone prolongs the QT interval by about 10 msec, it should not be used in pa-tients with a QT interval of more than 500 msec. It does not have significant pulmonary or thy-roid toxicity. It should not be used in patients with a PR interval of more than 280 msec.

Answer to Question 2

B
Ginkgo biloba can suppress platelet aggregation and will increase the risk of bleeding in patients taking antiplatelet medications and anticoagulants. Coenzyme Q-10, Ma Huang, and St. John's wort do not have antiplatelet actions.