Exam (elaborations)
PEEP & CPAP (Exam 1) Questions And 100% Correct Answers
- Course
- Institution
PEEP & CPAP (Exam 1) Questions And 100% Correct Answers...
[Show more]
Content preview
PEEP & CPAP (Exam 1) Questions And 100% Correct AnswersPEEP - Answer recruits some collapsed alveoli
increases FRC & increases compliance in the dependent are (lower lobe) of lung
*compliance is decreased in the non-dependent (upper lobe) area of the lung due to
overdistention
Indications of PEEP - Answer Refractory Hypoxemia (will not respond to supplemental
O2)
Shunt of >30%
Atelectasis with decreased FRC
decreased compliance
Certain disease processes
Goals of PEEP - Answer improve tissue oxygenation
keep PaO2 >60 & SpO2 at or >90% @ acceptable pH
Recruit alveoli & maintain
Restore FRC
Establishing PEEP - Answer FIO2 >.50
PIP >35 cwp
is PaO2 still <60: then begin to increase PEEP by 3-5 until:
1. acceptable oxygenation achieved
2. unacceptable side effects occur:
decreased compliance
decreased cardiac function
barotrauma
, Levels of PEEP - Answer Minimum "physiologic" 3-5
moderate 5-15
maximum >15
Optimal - PEEP level which achieves maximum benefits with least side effects
Physiologic Effects of PEEP on: - Answer PaO2 - up
FRC - up
PaCO2 - down
BP - down
PvO2 - improves
Intrapulmonary shunt - down
Cardiac output - down
Ca-v O2 - down
ICP - up
Compliance - improves
ARDS causes: - Answer decrease compliance
decrease FRC
increase PVR
decrease v/q mm
increase shunt
PEEp will help improve all of the above by reaching the critical opening pressure
thereby reducing the shunt
Other uses/indications for PEEP/CPAP -Answer *CHF - cardiogenic pulmonary edema (L
heart failure, clinical presentations: pink, frothy secretions)
Benefits: decreases venous return/amt of blood to pump, increases FIO2
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller Easton. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $9.99. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
77254 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now