Exam (elaborations)
N450 Lab Quiz 2 SG (1).
- Course
- Institution
N450 Lab Quiz 2 SG (1).
[Show more]
Seller
Follow
modockochieng06
Content preview
N450 Lab Quiz 2 SGHow is acid base status of the body regulated? - ANS-Buffers
Resp system (PaCO2)
Renal system (HCO3-)
What are buffers? - ANS-weak acids or bases that can react with strong acids or bases to
prevent sharp, sudden changes in pH
What is the pH buffer formula? - ANS-H+ + HCO3- <-> H2CO3 <-> CO2 + H2O
What do kidneys regulate? - ANS-bicarbonate
What do lungs regulate? - ANS-carbon dioxide
What is the normal pH level of the body? - ANS-7.35-7.45
Respiratory contribution to pH balance? What measures respiratory regulation? -
ANS-Chemoreceptors sense pH and PaCO2
High carbonic acid level: rate and depth of respirations increase
Low carbonic acid: rate and depth of respirations decrease
PaCO2 regulates respiratory regulation
Renal contribution to pH balance? What measures renal regulation? - ANS-Kidneys can excrete
acid
Increase carbonic acid, kidneys excrete metabolic acids
HCO3 measures renal regulation
What happens to K in acidosis and alkalosis? - ANS-In acidosis, H+ moves into the cell to buffer
and K+ leaves cell, causing hyper K
In alkalosis, K+ is going into the cell, causing alkalosis
What happens if you are hyper K+? - ANS-more K is secreted and excreted in into the urine,
leaving more h+ which leads to acidosis
, vice versa with hypo k
Venous CO2 vs PaCO2? - ANS-venous is indirect measure, 2 mEq more
Why take arterial blood in an ABG? - ANS-determine acid base balance
determine oxygen status
helps determine CO
What is the normal PaCO2? - ANS-35-45 mmHg
What is the normal HCO3? - ANS-24-28 mEq
What is the normal base excess? - ANS--2 to +2
What is the normal PaO2? - ANS-80-100 mmHg
What is the normal SaO2? - ANS-95-100%
What is pulse oximetry? - ANS-noninvasive measurement of peripheral arterial hemoglobin O2
saturation
What is a capnography? - ANS-noninvasive measurement of end tidal CO2, arterial CO2
What is carbon dioxide and bicarbonate? - ANS-CO2 is respiratory, more is acidotic
Bicarb is metabolic, less is acidotic
What are the symptoms of acidemia? - ANS-Decreased BP
Tachy
HA
Confusion
Asterixis
Coma
What is the CO2 range for acidosis --> alkalosis? - ANS-60 to 40 to 20
What is the HCO3 range for acidosis --> alkalosis? - ANS-18-24-30
What is is compensation? Example? - ANS-a secondary response to reverse abnormal trends
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 modockochieng06. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $7.99. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
82215 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now