Pharmacology Practice Quiz 8
20 Questions
| Total Attempts: 65
Questions and Answers
- 1.If you increase the levels of extracellular potassium, you will increase the resting membrane potential (make less negative)
- A.
True
- B.
False
- 2.Loss of function mutations in the hERG gene would result in short QT syndrome
- A.
True
- B.
False
- 3.Torsades de pointes is a life threatening atrial arrhythmia.
- A.
True
- B.
False
- 4.A gain of function mutation in the sodium channel would result in prolongation of the action potential.
- A.
True
- B.
False
- 5.Patients with Congestive Heart Failure are more vulnerable to cardiac arrythmias than patients without CHF.
- A.
True
- B.
False
- 6.An increased expression of the sodium/calcium exchanger can produced DADs.
- A.
True
- B.
False
- 7.The three mechanisms of cardiac arrythmias are Enhanced Automaticity, afterdepolarizations & triggered automatcity, and Pharmacology quizzes.
- A.
True
- B.
False
- 8.Subclass IA of the Sodium Channel Blockers have short duration of blockade.
- A.
True
- B.
False
- 9.Lidocaine preferentially interacts with closed sodium channels.
- A.
True
- B.
False
- 10.Amiodarone only shows class III (potassium channel blocking) characteristics.
- A.
True
- B.
False
- 11.The correct pronunciation of amiodarone is:
- A.
A MEE oh da rone
- B.
A mee oh DAR one
- 12.Calcium Channel blockers are used to slow the rate of AV-conduction in patients with atrial fibrillation.
- A.
True
- B.
False
- 13.Both flecainide and propranolol showed increased mortality for post-myocardial infarction in the CAST study.
- A.
True
- B.
False
- 14.A non-selective hERG blocker is less likely to have EADs as a consequence than a selective hERG blocker.
- A.
True
- B.
False
- 15.The proarrhythmia classes are Class IB and Class III.
- A.
True
- B.
False
- 16.Adenosine receptors are G coupled protein receptors.
- A.
True
- B.
False
- 17.Taken concurrently, erythromycin and disopyramide will decrease the incidence of sudden cardiac death.
- A.
True
- B.
False
- 18.I can't wait until December 15th.
- A.
True
- B.
False
Mark the letter of choice, then click on the Next button. The score will be posted as soon as you are done with the quiz. You got 24 minutes to finish the exam. Good luck!
Questions: 20 | Attempts: 24208 | Last updated: Jan 8, 2021
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