Pharmacology Practice Quiz 8

20 Questions | By Juicemaster85 | Updated: Mar 21, 2022 | Attempts: 88

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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