This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: A patient is admitted to the cardiac care unit from the emergency department. He is receiving ... (Read 19 times)

Wadzanai

  • Hero Member
  • *****
  • Posts: 528
on: Jul 23, 2018
A patient is admitted to the cardiac care unit from the emergency department. He is receiving amiodarone (Cordarone), because his frequent runs of ventricular tachycardia have proved refractory to other drugs.
 
  The rationale for using this very toxic, potentially ventricular antidysrhythmic drug is that it
  a. delays action potential.
  b. delays repolarization.
  c. opens calcium and sodium channels.
  d. vasoconstricts peripheral vessels.

Question 2

A patient was being worked up for frequent premature ventricular beats. He had been taking quinidine, and 2 days ago, he was admitted for an acute myocardial infarction.
 
  His QT interval has been elongating, and the nurse is not surprised to note which dysrhythmia?
  a. Torsades de pointes
  b. Supraventricular tachycardia
  c. Sinus arrhythmia
  d. Junctional tachycardia


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

Joy Chen

  • Sr. Member
  • ****
  • Posts: 354
Reply #1 on: Jul 23, 2018
Answer to Question 1

ANS: B
Amiodarone delays repolarization.
Amiodarone increases action potential.
Amiodarone blocks calcium and sodium channels.
Amiodarone promotes peripheral vessel vasodilation.

Answer to Question 2

ANS: A
QT elongation often is associated with torsades de pointes.
Sustained ventricular tachycardia could also occur, but not supraventricular tachycardia.
Sinus arrhythmia and junctional tachycardia are not anticipated with an elongated QT interval.


Wadzanai

  • Member
  • Posts: 528
Reply 2 on: Jul 23, 2018
Wow, this really help

momolu

  • Member
  • Posts: 320
Reply 3 on: Yesterday
Gracias!

« previous next »
 

Did you know?

A good example of polar molecules can be understood when trying to make a cake. If water and oil are required, they will not mix together. If you put them into a measuring cup, the oil will rise to the top while the water remains on the bottom.

Did you know?

Acetaminophen (Tylenol) in overdose can seriously damage the liver. It should never be taken by people who use alcohol heavily; it can result in severe liver damage and even a condition requiring a liver transplant.

Did you know?

When taking monoamine oxidase inhibitors, people should avoid a variety of foods, which include alcoholic beverages, bean curd, broad (fava) bean pods, cheese, fish, ginseng, protein extracts, meat, sauerkraut, shrimp paste, soups, and yeast.

Did you know?

The Centers for Disease Control and Prevention (CDC) was originally known as the Communicable Disease Center, which was formed to fight malaria. It was originally headquartered in Atlanta, Georgia, since the Southern states faced the worst threat from malaria.

Did you know?

One way to reduce acid reflux is to lose two or three pounds. Most people lose weight in the belly area first when they increase exercise, meaning that heartburn can be reduced quickly by this method.

The basic unit of life - cell The basic unit of life - cell
Patient teaching: abdominal assessment Patient teaching: abdominal assessment
EHR systems enable providers to view patient records across organizations. EHR systems enable providers to view patient records across organizations.
Instructing a Patient to Use Crutches Correctly Instructing a Patient to Use Crutches Correctly
Orange section of the Emergency Response Guidebook (ERG). Orange section of the Emergency Response Guidebook (ERG).
ATP Production in Cardiac Muscle ATP Production in Cardiac Muscle
Video: Multiple Sclerosis Animation

For a complete list of videos, visit our video library