Exam (elaborations)
NURS 1220 Week 3 Exam Questions And 100% Correct Answers
- Course
- Institution
NURS 1220 Week 3 Exam Questions And 100% Correct Answers...
[Show more]
Content preview
NURS 1220 Week 3 Exam Questions And100% Correct Answers
Acid: -Answer A substance that increases the hydrogen ion concentration of a solution.
Base/alkaline: -Answer substances that binds free hydrogen ions in solutions and lowers
the amount of free hydrogen in the solution
Buffers: -Answer substances that help keep body pH normal levels
pH: -Answer measurement of the free hydrogen ions in the body (goal 7.35-7.45)
Acid-base balance: - Answer The process of maintaining the pH, and the concentration
of bicarbonate in the partial pressure of CO2 in body fluids
Two processes that operate to maintain a constant level of hydrogen ions in the body: -
Answer metabolic processes through the kidneys
the respiratory processes through the lungs
Changes in acid-base balance can affect many activities of the human body, which
include the following: - Answershape & function of hormones & enzymes
-fluid & electrolyte balance
-excitability of membranes
-effectiveness of many drugs
Control mechanisms are - Answers the kidneys and lungs
, Respiratory/lungs: - Answer If the chemical buffers are not able to prevent an alteration
in blood pH levels, then respiratory system is the second line defense
What would be the first line of defense in the body to correct any fluctuations in
acid-base balance? Buffers
As the level of CO2 rises above normal level what occurs in the body? The body begins
to increase the rate and depth of breathing-causing a pt to hyperventilate causing the
level of CO2 to reduce
As CO2 levels fall below normal level what occurs in the body? -Answer the body has the
tendency to reduce the rate and depth of breathing-causing a pt to hypo ventilate
causing the level of CO2 to rise
When chemical buffers in the respiratory system cannot prevent changes in the blood
pH, - Answer the metabolic system is the third of defense
Metabolic system: - Answer -more powerful for regulation
-kidneys control the quantity of bicarbonate that is reabsorbed and or excreted
-Renal system more powerful
-takes longer to turn on than chemical/respiratory systems
3 pathways that alter pH: - Answer -kidney handling of bicarbonate
-Production of acids ⇨ phosphate binds to hydrogen ions and can be excreted in the
urine
-production of ammonium ⇨ breakdown of proteins in the kidneys binds to hydrogen
ions and can be excreted in the urine
Acidosis: - Answer levels of acid in blood too high (<7.35)
Alkalosis: - Answer levels of alkaline basic fluids too high (>7.45)
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 Stetson. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $12.99. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
82871 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now