« previous next »

Author Question: The mode that causes the greatest reduction in cardiac output during ventilation is which of the ... (Read 9 times)

codyclark

  • Hero Member
  • *****
  • Posts: 538
on: Jul 16, 2018
The mode that causes the greatest reduction in cardiac output during ventilation is which of the following?
 
  a. CPAP
  b. IMV
  c. IMV with PEEP
  d. VC-CMV with PEEP

Question 2

High tidal volumes and/or high levels of PEEP can cause which of the following?
 
  a. Improvement in pulmonary blood flow
  b. Increased right ventricular afterload
  c. Interventricular septum shifts to the right
  d. Increased myocardial perfusion


af

  • Sr. Member
  • ****
  • Posts: 356
Reply #1 on: Jul 16, 2018
Answer to Question 1

ANS: D
VC-CMV with PEEP causes the highest mean airway pressure; this results in the greatest reduc-tion in venous return and thus cardiac output.

Answer to Question 2

ANS: B
High tidal volumes and/or high levels of PEEP result in increased resistance to blood flow through the pulmonary circulation; this increases right ventricular afterload. In addition, the right ventricle becomes overdistended, causing a decrease in RV output. Dilation of the RV can also force the interventricular septum to move to the left. Left ventricular output may also be de-creased because of the expanding lungs. This plus the decreased venous return lowers cardiac output and decreases the amount of blood perfusing the myocardium.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question

codyclark

  • Hero Member
  • *****
  • Posts: 538
Reply #2 on: Jul 16, 2018
TY


af

  • Sr. Member
  • ****
  • Posts: 356
Reply #3 on: Jul 16, 2018
Happy to Help


« previous next »
 

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.

Did you know?

On average, someone in the United States has a stroke about every 40 seconds. This is about 795,000 people per year.

Did you know?

The liver is the only organ that has the ability to regenerate itself after certain types of damage. As much as 25% of the liver can be removed, and it will still regenerate back to its original shape and size. However, the liver cannot regenerate after severe damage caused by alcohol.

Did you know?

A recent study has found that following a diet rich in berries may slow down the aging process of the brain. This diet apparently helps to keep dopamine levels much higher than are seen in normal individuals who do not eat berries as a regular part of their diet as they enter their later years.

Did you know?

Immunoglobulin injections may give short-term protection against, or reduce severity of certain diseases. They help people who have an inherited problem making their own antibodies, or those who are having certain types of cancer treatments.

Cardiac catheterization. Cardiac catheterization.
Cardiac Muscle Cardiac Muscle
Cardiac Auscultation landmarks Cardiac Auscultation landmarks
determining the mode of inheritance determining the mode of inheritance
The medical assistant is measuring the urine output from a patient who has an indwelling Foley ... The medical assistant is measuring the urine output from a patient who has an indwelling Foley ...
During a period of high power demand, the voltage output of the power company is reduced by ... During a period of high power demand, the voltage output of the power company is reduced by ...
Video: Glomerubular filtrate rate -pressures that affect GFR and net filtration pressure

For a complete list of videos, visit our video library