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

Author Question: Which of the following is the explanation for the increased ratio when excessive positive end ... (Read 9 times)

altibaby

  • Hero Member
  • *****
  • Posts: 562
on: Jul 16, 2018
Which of the following is the explanation for the increased ratio when excessive positive end ex-piratory pressure (PEEP) is used?
 
  a. Diversion of blood from ventilated alveoli to hypoventilated alveoli
  b. Diversion of blood from hypoventilated alveoli to ventilated alveoli
  c. Shunt-like effect
  d. Hyperexpansion

Question 2

Which of the following is the consequence of decreased resistance or compliance?
 
  a. It takes more time to fill the alveoli.
  b. It takes more time to empty the alveoli.
  c. It takes less time to fill and more time to empty the alveoli.
  d. It takes less time to fill and empty the al-veoli.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

fffftttt

  • Sr. Member
  • ****
  • Posts: 322
Reply #1 on: Jul 16, 2018
Answer to Question 1

ANS: A
When excessive PEEP is used, blood flow is diverted from ventilated alveoli to hypoventilated alveoli; the result is an increased ratio.

Answer to Question 2

ANS: D
If compliance or resistance decreases, the time constant for a given lung unit decreases, and the lung fills and empties faster.


altibaby

  • Member
  • Posts: 562
Reply 2 on: Jul 16, 2018
Wow, this really help

meganmoser117

  • Member
  • Posts: 303
Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

« previous next »
 

Did you know?

Bisphosphonates were first developed in the nineteenth century. They were first investigated for use in disorders of bone metabolism in the 1960s. They are now used clinically for the treatment of osteoporosis, Paget's disease, bone metastasis, multiple myeloma, and other conditions that feature bone fragility.

Did you know?

Not getting enough sleep can greatly weaken the immune system. Lack of sleep makes you more likely to catch a cold, or more difficult to fight off an infection.

Did you know?

About 60% of newborn infants in the United States are jaundiced; that is, they look yellow. Kernicterus is a form of brain damage caused by excessive jaundice. When babies begin to be affected by excessive jaundice and begin to have brain damage, they become excessively lethargic.

Did you know?

Approximately one in four people diagnosed with diabetes will develop foot problems. Of these, about one-third will require lower extremity amputation.

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.

Mendel's breeding program that produced a 9 : 3 : 3 : 1 ratio Mendel's breeding program that produced a 9 : 3 : 3 : 1 ratio
Nonverbal communications convey strong, powerful messages that may be negative or positive. Nonverbal communications convey strong, powerful messages that may be negative or positive.
Effects of septal defects: (A) normal shunt; no cyanosis; (B) increased pressure in right ventricle; ... Effects of septal defects: (A) normal shunt; no cyanosis; (B) increased pressure in right ventricle; ...
Fire activity ratio Fire activity ratio
Positive and Negative Reinforcement Positive and Negative Reinforcement
Mechanisms of positive control of transcription Mechanisms of positive control of transcription
Video: Structures that affect circulation - venous return

For a complete list of videos, visit our video library