« previous next »

Author Question: What is implied by an abnormally prolonged PR interval? a. Atrioventricular block b. ... (Read 132 times)

rachel9

  • Sr. Member
  • ****
  • Posts: 495
on: Jul 16, 2018
What is implied by an abnormally prolonged PR interval?
 
  a. Atrioventricular block
  b. Bundle-branch block
  c. Myocardial infarction
  d. Valvular detachment

Question 2

What is the normal period of time for the PR interval?
 
  a. Not longer than 0.20 sec
  b. Not longer than 0.30 sec
  c. Not longer than 0.45 sec
  d. Not longer than 0.50 sec


Anonymous

  • Sr. Member
  • ****
  • Posts: 317
Reply #1 on: Jul 16, 2018
Answer to Question 1

ANS: A
PR intervals longer than 0.20 sec suggest that the impulse is abnormally delayed at the AV node and a block is present.

Answer to Question 2

ANS: A
Normally, the PR interval represents a period no longer than 0.20 sec.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

In inpatient settings, adverse drug events account for an estimated one in three of all hospital adverse events. They affect approximately 2 million hospital stays every year, and prolong hospital stays by between one and five days.

Did you know?

Complications of influenza include: bacterial pneumonia, ear and sinus infections, dehydration, and worsening of chronic conditions such as asthma, congestive heart failure, or diabetes.

Did you know?

Bacteria have flourished on the earth for over three billion years. They were the first life forms on the planet.

Did you know?

Patients who cannot swallow may receive nutrition via a parenteral route—usually, a catheter is inserted through the chest into a large vein going into the heart.

Did you know?

The longest a person has survived after a heart transplant is 24 years.

A cutaway of a small block Chevrolet V-8 showing the passage from the cylinder head through the ... A cutaway of a small block Chevrolet V-8 showing the passage from the cylinder head through the ...
Block open the throttle (and choke, if the engine is equipped with a carburetor). Here a screwdriver ... Block open the throttle (and choke, if the engine is equipped with a carburetor). Here a screwdriver ...
Group that may block N-terminus and C-terminus Group that may block N-terminus and C-terminus
Heart block Heart block
Sketch a graph of the function h(x), by hand on the following interval: Sketch a graph of the function h(x), by hand on the following interval:
Video: Language Areas Animation

For a complete list of videos, visit our video library