« previous next »

Author Question: In 2:1 AV block, the PR interval _____. a. shortens b. lengthens c. is absent d. remains ... (Read 61 times)

drink

  • Hero Member
  • *****
  • Posts: 554
on: Jun 25, 2018
In 2:1 AV block, the PR interval _____.
 
  a. shortens
  b. lengthens
  c. is absent
  d. remains constant

Question 2

The _____ are the heart chambers that receive blood.
 
  Fill in the blanks with correct word


momo1250

  • Sr. Member
  • ****
  • Posts: 338
Reply #1 on: Jun 25, 2018
Answer to Question 1

D
Second-degree 2:1 AV block is characterized by P waves that are normal in size and shape, but every other P wave is not followed by a QRS. The atrial rate is twice the ventricular rate. The PR interval for the conducted beats is constant.

Answer to Question 2

atria


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

There are immediate benefits of chiropractic adjustments that are visible via magnetic resonance imaging (MRI). It shows that spinal manipulation therapy is effective in decreasing pain and increasing the gaps between the vertebrae, reducing pressure that leads to pain.

Did you know?

Cyanide works by making the human body unable to use oxygen.

Did you know?

Cocaine was isolated in 1860 and first used as a local anesthetic in 1884. Its first clinical use was by Sigmund Freud to wean a patient from morphine addiction. The fictional character Sherlock Holmes was supposed to be addicted to cocaine by injection.

Did you know?

Vampire bats have a natural anticoagulant in their saliva that permits continuous bleeding after they painlessly open a wound with their incisors. This capillary blood does not cause any significant blood loss to their victims.

Did you know?

The first-known contraceptive was crocodile dung, used in Egypt in 2000 BC. Condoms were also reportedly used, made of animal bladders or intestines.

Fossilized Remains of Former Life Fossilized Remains of Former Life
Biological anthropologists map skeletal remains from a prehistoric site. Biological anthropologists map skeletal remains from a prehistoric site.
Bioarchaeologists and forensic anthropologists use archaeological excavation techniques to recover r Bioarchaeologists and forensic anthropologists use archaeological excavation techniques to recover r
A biological profile from the bony remains of an individual may be preferable to a DNA profile for a A biological profile from the bony remains of an individual may be preferable to a DNA profile for a
Inhibition of cyclooxygenase 1 and 2. Nonselective NSAIDs block the cytoprotective effects as well ... Inhibition of cyclooxygenase 1 and 2. Nonselective NSAIDs block the cytoprotective effects as well ...
Heart block Heart block
Video: Non-polar compounds - insolubility

For a complete list of videos, visit our video library