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

Author Question: Which of the following are potential effects of positive-pressure ventilation on the cardiovascular ... (Read 83 times)

Wadzanai

  • Hero Member
  • *****
  • Posts: 528
on: Jul 16, 2018
Which of the following are potential effects of positive-pressure ventilation on the cardiovascular system? 1. Decreased venous return 2. Decreased cranial perfusion pressures 3. Increased pulmonary blood flow 4. Decreased ventricular stroke volume
 
  a. 2 and 4 only
  b. 1 and 4 only
  c. 3 and 4 only
  d. 1, 2, 3, and 4

Question 2

Ventricular dysfunction occurs in patients receiving positive-pressure ventilation for which of the following reasons?
 
  1. Hypovolemia
  2. Excessive tidal volume
  3. Receiving more than optimal positive end expiratory pressure (PEEP)
  4. Hypervolemia
  a. 1 and 3 only
  b. 1, 2, and 3 only
  c. 3 and 4 only
  d. 2, 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

triiciiaa

  • Sr. Member
  • ****
  • Posts: 349
Reply #1 on: Jul 16, 2018
Answer to Question 1

ANS: B
Positive pleural pressure compresses the intrathoracic veins and increases central venous and right atrial filling pressures. As these pressures increase, venous return to the heart is impeded and right ventricular preload and stroke volume decrease, as does pulmonary blood flow.

Answer to Question 2

ANS: B
It appears that right or left ventricular dysfunction occurs if the patient is hypovolemic, receiving an excessive tidal volume, or receiving more than optimum PEEP.


Wadzanai

  • Member
  • Posts: 528
Reply 2 on: Jul 16, 2018
Great answer, keep it coming :)

triiciiaa

  • Member
  • Posts: 349
Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

« previous next »
 

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?

Hip fractures are the most serious consequences of osteoporosis. The incidence of hip fractures increases with each decade among patients in their 60s to patients in their 90s for both women and men of all populations. Men and women older than 80 years of age show the highest incidence of hip fractures.

Did you know?

Although the Roman numeral for the number 4 has always been taught to have been "IV," according to historians, the ancient Romans probably used "IIII" most of the time. This is partially backed up by the fact that early grandfather clocks displayed IIII for the number 4 instead of IV. Early clockmakers apparently thought that the IIII balanced out the VIII (used for the number 8) on the clock face and that it just looked better.

Did you know?

More than 20 million Americans cite use of marijuana within the past 30 days, according to the National Survey on Drug Use and Health (NSDUH). More than 8 million admit to using it almost every day.

Did you know?

Sildenafil (Viagra®) has two actions that may be of consequence in patients with heart disease. It can lower the blood pressure, and it can interact with nitrates. It should never be used in patients who are taking nitrates.

Effects of PYY on Activity of the Hypothalamus and OFC Effects of PYY on Activity of the Hypothalamus and OFC
The process of ventilation: inspiration and expiration. The process of ventilation: inspiration and expiration.
Average Normal Blood Pressure Readings Average Normal Blood Pressure Readings
A wastegate is used on the first-generation Duramax diesel to control maximum boost pressure. A wastegate is used on the first-generation Duramax diesel to control maximum boost pressure.
Apply direct pressure to points along the shoulders. Stand to one side and use your forearm to apply ... Apply direct pressure to points along the shoulders. Stand to one side and use your forearm to apply ...
Fogel’s Map of a Potential Water Transport Network for 1890 Fogel’s Map of a Potential Water Transport Network for 1890
Video: Wound Care

For a complete list of videos, visit our video library