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

Author Question: Which of the following are differences between cardioversion and defibrillation? 1. In ... (Read 119 times)

theo

  • Hero Member
  • *****
  • Posts: 698
on: Jul 16, 2018
Which of the following are differences between cardioversion and defibrillation?
 
  1. In cardioversion, the countershock is synchronized with the R wave.
  2. In defibrillation, more energy is applied.
  3. In cardioversion, the countershock is synchronized with the R wave.
  4. In defibrillation, more energy is applied.
  a. 1 only
  b. 1 and 2 only
  c. 2 only
  d. 3 and 4 only

Question 2

Causes of ventricular fibrillation include which of the following? 1. Damage to the sinoatrial node 2. Digitalis overdose 3. Severe hypoxia 4. Myocardial infarction (MI)
 
  a. 2 and 4 only
  b. 1, 2, and 3 only
  c. 2, 3, and 4 only
  d. 1, 3, and 4 only


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

jennafosdick

  • Sr. Member
  • ****
  • Posts: 345
Reply #1 on: Jul 16, 2018
Answer to Question 1

ANS: B
Cardioversion is similar to defibrillation, with two major exceptions. First, the countershock is synchronized with the heart's electrical activity (the R wave). Synchronization is necessary be-cause electrical stimulation during the refractory phase (part of the T wave) can cause ventricular fibrillation or tachycardia. Second, the energy used during cardioversion usually is less than that applied during defibrillation.

Answer to Question 2

ANS: C
The most common causes include electrical shock, anesthesia, mechanical irritation of the heart, severe hypoxia, MI, and large doses of digitalis or epinephrine.


theo

  • Member
  • Posts: 698
Reply 2 on: Jul 16, 2018
:D TYSM

carlsona147

  • Member
  • Posts: 341
Reply 3 on: Yesterday
Great answer, keep it coming :)

« previous next »
 

Did you know?

Atropine was named after the Greek goddess Atropos, the oldest and ugliest of the three sisters known as the Fates, who controlled the destiny of men.

Did you know?

Autoimmune diseases occur when the immune system destroys its own healthy tissues. When this occurs, white blood cells cannot distinguish between pathogens and normal cells.

Did you know?

The human body's pharmacokinetics are quite varied. Our hair holds onto drugs longer than our urine, blood, or saliva. For example, alcohol can be detected in the hair for up to 90 days after it was consumed. The same is true for marijuana, cocaine, ecstasy, heroin, methamphetamine, and nicotine.

Did you know?

The use of salicylates dates back 2,500 years to Hippocrates’s recommendation of willow bark (from which a salicylate is derived) as an aid to the pains of childbirth. However, overdosage of salicylates can harm body fluids, electrolytes, the CNS, the GI tract, the ears, the lungs, the blood, the liver, and the kidneys and cause coma or death.

Did you know?

Blood is approximately twice as thick as water because of the cells and other components found in it.

Differences in the number and location of flagella. Differences in the number and location of flagella.
How temperature differences generate wind How temperature differences generate wind
Sensory Differences Between Species Sensory Differences Between Species
Third Differences Third Differences
skull differences skull differences
comparisons/differences comparisons/differences
Video: Normal and abnormal blood pH

For a complete list of videos, visit our video library