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Author Question: Detrimental effects of auto-positive end expiratory pressure (PEEP) include which of the fol-lowing? ... (Read 129 times)

luvbio

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on: Jul 16, 2018
Detrimental effects of auto-positive end expiratory pressure (PEEP) include which of the fol-lowing?
 
  1. Increased work of breathing
  2. Increased pulmonary barotrauma
  3. Decreased pulmonary vascular resistance
  4. Increased venous return
  a. 1 and 2 only
  b. 1, 2, and 3 only
  c. 3 and 4 only
  d. 2, 3, and 4 only

Question 2

What patients are at greatest risk for auto-PEEP? 1. Those supported by spontaneous breath modes 2. Those with high airway resistance 3. Those with high expiratory flow resistance
 
  a. 1 and 2 only
  b. 2 and 3 only
  c. 1 and 3 only
  d. 1, 2, and 3


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joneynes

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

ANS: A
By increasing FRC and alveolar pressure, auto-PEEP increases the risk and severity of barotrau-ma and volutrauma. Auto-PEEP also increases the work of breathing and impedes venous return, the result being a decrease in cardiac output. Auto-PEEP also can increase pulmonary vascular resistance.

Answer to Question 2

ANS: B
Patients at greatest risk of development of auto-PEEP are those with high airway resistance who are being supported by modes that limit expiratory time.


luvbio

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Reply #2 on: Jul 16, 2018
Correct answers!


joneynes

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Reply #3 on: Jul 16, 2018
Great! Please up vote :D


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