Exam (elaborations)
CPAP Exam 5 Review With Questions And Answers
- Course
- Institution
CPAP Exam 5 Review With Questions And Answers...
[Show more]
Content preview
CPAP Exam 5 Review With Questions And AnswersWhat is normal for an ABG?
pH 7.35 - 7.45
PaCO2 35 - 45 mmHg
HCO3- 22 - 26 mEq/L
PaO2 80 - 100 mmHg
What is normal for VBG?
pH 7.30 - 7.40
PaCO2 42 - 48 mmHg
HCO3- 24 - 30 mEq/L
PaO2 35 - 45 mmHg
What does an ABG look like for acidosis?
Any pH < 7.35
Any HCO3- < 22
What does an ABG look like for alkalosis?
Any pH above 7.45
Any HCO3- above 26
3 Lines of Defense for Acid-Base Regulation
1. Chemical Buffer System
-Carbonic-acid bicarbonate buffer system-Phosphate buffer system-Protein buffer
system
2. Respiratory System
3. Renal System
How fast does the chemical buffer system start working and effective to give acid-base
, balance?
Answers within fraction of a second to oppose pH changes; 1st line of defense
How long does it take for the respiratory system to kick in and start to work for
acid-base balance?
acts within one to three minutes
-not too efficient at this
How long does it take for the renal system to kick in and start to work for acid-base
balance?
requires 1 day or more to correct abnormal pH; the body's monitor and regulator; most
effective
What is a strong acid and what does it do?
Strong acids completely and irreversibly dissociate completely in water and change the
pH of the solution.
What are some examples of weak acids?
carbonic acid H2CO3
acetic acid HC2H3O2
What is a base?
proton acceptor; taste bitter and slippery; a substance that takes up H+ ions; when
dissolved in water, hydroxides dissociates into hydroxide ions and cations. (HCO3-;
NH3)
What is the pH of pure water?
7 (neutral)
What happens to carbonic acid when it dissociates and what are the products?
it dissociates reversibly and releases bicarbonate ions and protons
Hypoventilation
a respiratory system pathophysiological condition whereby the volume of air that enters
the alveoli and participate in gas exchange
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