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Author Question: Retinopathy of prematurity often occurs in neonates because of which of the following? a. ... (Read 69 times)

jrubin

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on: Jul 16, 2018
Retinopathy of prematurity often occurs in neonates because of which of the following?
 
  a. Increased amounts of FIO2
  b. Low amounts of FIO2
  c. Improper placement of the oxy-gen-delivery device
  d. Hyperventilation

Question 2

What is the percentage of FIO2 for a patient on 3 L/min delivered through a nasal cannula?
 
  a. 32 c. 44
  b. 40 d. 50


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Kdiggy

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

ANS: A
The origin of retinopathy of prematurity, especially with regard to the role of oxygen, is contro-versial. Nonetheless, care should be taken when supplemental oxygen is provided to preterm in-fants (<37 weeks' gestation). it is suggested that oxygen supplementation should not result in a pao2>80 mm Hg.

Answer to Question 2

ANS: A
3 L/min  4 = 12 L/min + 20 = 32 FIO2. The flow is multiplied by 4 because for every 1 L/min of oxygen flowing to a nasal cannula the FIO2 increases by 4. The 20 is the number that the flow multiplied by 4 is added to, in order to get the approximate FIO2.


jrubin

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Reply 2 on: Jul 16, 2018
Gracias!

mochi09

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Reply 3 on: Yesterday
Excellent

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