NR 324 Exam 1 Questions with Correct Answers
What is wrong with the body during DKA? Correct Answer-It is too
acidic
Do people with COPD and other chronic respiratory illnesses hyper or
hypoventilate? Correct Answer-HYPOventilate
What organs are the two regulators of acid in our body? Correct
Answer-Lungs and kidneys
When will a patient display Kussmaul breathing in relation to acid-base
balance? Correct Answer-During acidosis /
Normal pH range of blood Correct Answer-7.35-7.45
normal PaCo2 Correct Answer-35-45 mm Hg
PaO2 normal levels Correct Answer-80-100
Normal HCO3 levels Correct Answer-22-26mEq/L
Ratio of carbonic acid to bicarbonate in a healthy state Correct Answer-
1:20
,Three regulatory mechanisms of acid-base regulation Correct Answer-
Buffer system
respiratory system
renal system
Which regulatory system responds immediately? Correct Answer-The
buffer system. It is your natural neutral reaction process
Which system responds in minutes and reaches its maximum effort
within hours? Correct Answer-Respiratory system
Which regulatory system takes 2-3 days to respond? Correct Answer-
Renal system
What type of acid-base imbalance would someone who took too much
Aspirin have? Correct Answer-Respiratory acidosis
Why is a brown bag helpful for someone with respiratory alkalosis to
breathe into? Correct Answer-Because they can help return the CO2
back to their body that they lost from hyperventilating
What type of meds are useful for someone in Respiratory alkalosis?
Correct Answer-Minor tranquilizers and anti-anxiety meds such as
Ativan because they are hyperventilating and need help relaxing
, What are two common causes for metabolic acidosis? Correct Answer-
Aspirin overdose and prolonged diarrhea
Common cause for metabolic alkalosis: Correct Answer-prolonged
vomiting or gastric suction ---you are eliminating acid from the body for
a prolonged period of time.
The kidneys compensate by dumping...lungs hypoventilate to keep CO2
When you auscultate cardiac sounds what are you hearing? Correct
Answer-The valves opening and shutting
What is the major purpose of the cardiac system? Correct Answer-to
supply the body with oxygenated blood
Ejection fraction Correct Answer-the amount of blood ejected per
minutes. It is >65mL per minute. You need an effective cardiac output
and ejection fraction to ensure the hear is working well.
If cardiac output is insufficient, what does this mean? Correct Answer-
you do not have enough o2 in your body
what are the three layers of the heart Correct Answer-epicardium- outer
layer ,myocardium-middle layer, endocardium-inner layer
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