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Author Question: Which of the following gastrointestinal conditions are commonly associated with long-term ... (Read 31 times)

Wadzanai

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on: Jul 16, 2018
Which of the following gastrointestinal conditions are commonly associated with long-term posi-tive-pressure ventilation (PPV)? 1. Bleeding 2. Ulceration 3. Diarrhea
 
  a. 1 and 2 only
  b. 2 and 3 only
  c. 1 and 3 only
  d. 1, 2, and 3

Question 2

Which of the following mechanisms explains the hepatic dysfunction in patients receiving posi-tive-pressure ventilation (PPV)?
 
  a. Decreased hepatic blood flow
  b. Increased portal venous pressure
  c. Hepatic congestion
  d. Increased bilirubin conjugation


jliusyl

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Reply #1 on: Jul 16, 2018
Answer to Question 1

ANS: A
An increase in splanchnic resistance can contribute to gastric mucosal ischemia and helps explain the high incidence of gastrointestinal bleeding and stress ulceration in patients receiving long-term PPV.

Answer to Question 2

ANS: A
These effects appear to be directly related to the reduction in hepatic blood flow that occurs with PPV.


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