NUR 425 Exam 3 Questions And Answers. Verified and Updated.
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NUR 425
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NUR 425
NUR 425 Exam 3 Questions And Answers.
Verified and Updated.
Which of the following is the body's first line of defense against an acid-base imbalance? -
answerChemical and protein buffers
In regards to acid-base imbalance, what does "compensation" mean? - answerIt is the body's
attempt to corr...
NUR 425 Exam 3 Questions And Answers.
Verified and Updated.
Which of the following is the body's first line of defense against an acid-base imbalance? -
answer✔✔Chemical and protein buffers
In regards to acid-base imbalance, what does "compensation" mean? - answer✔✔It is the body's
attempt to correct the acid-base imbalance
Which of the following places a patient at risk for a state of acidosis? (SELECT ALL THAT
APPLY)
a. A patient with severe anxiety
b. A patient rescued from a drowning
c. A patient who consumed an entire bottle of Tums
d. A patient with severe diarrhea
e. A patient with kidney failure - answer✔✔B,D,E
In general, respiratory alkalosis is due to what? - answer✔✔Breathing too quickly and/or deeply
Which of the following values is associated with "alkalosis"?
(SELECT ALL THAT APPLY)
a. ph: 7.5
EXAM STUDY MATERIALS July 24, 2024 1:33:58 PM
,b. CO2: 30
c. HCO3: 20
d. CO2: 45
e. HCO3: 45 - answer✔✔A,B,E
The amount of air in milliliters to be delivered with each breath describes which ventilator
setting? - answer✔✔Tidal Volume
Patients A and B are both on mechanical ventilatory support.
Patient A is receiving an FiO2 of 70% and patient B is receiving an FiO2 of 30%
Which statement about these patients is most accurate? - answer✔✔70% of the air being
delivered to patient B is NOT oxygen
What is the nurse's responsibility related to intubation? - answer✔✔Monitor the patient's SaO2
and alert the team of any complications during intubation attempts
Which of the following is true about pressure versus volume modes? - answer✔✔Pressure
modes deliver breaths with a set amount of pressure measured in cmH20
What is PEEP? - answer✔✔The amount of pressure delivered at the end of exhalation aimed at
keeping the alveoli open
Which of the following is the correct formula for calculating CPP? - answer✔✔MAP-ICP=CPP
Which of the following is a normal ICP value? - answer✔✔9
Which of the following is a normal CPP value? - answer✔✔80
According to the Monro Kellie Hypothesis, which of the following is true? - answer✔✔If the
volume of the brain increases, the blood and/or CSF must decrease
Calculate this patient's CPP and determine what nursing intervention is indicated
MAP: 72
EXAM STUDY MATERIALS July 24, 2024 1:33:58 PM
,ICP: 20 - answer✔✔CPP is 52, measures to reduce ICP are indicated
A 55 year old male with a brain tumor is hypoxic and hypercarbic (high CO2), what is he at risk
for? - answer✔✔Increased ICP due to cerebral vasodilation
Calculate this patient's CPP and determine what nursing intervention is indicated
MAP: 50
ICP: 5 - answer✔✔CPP: 45
Administer prescribed norepinephrine
Which could be a cause of increased intracranial pressure?
(SELECT ALL THAT APPLY)
a. hip extension
b. hydrocephalus
c. reduced outflow of blood from the brain
d. pain
e. anxiety - answer✔✔B,C,D,E
Homeostasis - answer✔✔crucial to sustain life
Acid Base Imbalance - answer✔✔just a symptom of disease- not a disease itself
Examples of health problems that lead to imbalance: - answer✔✔DM
EXAM STUDY MATERIALS July 24, 2024 1:33:58 PM
, COPD
Kidney disease
GI Disturbances
Drawing an ABG - answer✔✔Specimen comes from arterial blood;
- thus the A
Can be a direct stick to the artery - (radial, brachial, or femoral)
If frequent ABG's needed
- an Arterial Line is usually placed
Allow a minimum of 20 minutes after suctioning
- (suction time < 15 seconds), vent or oxygenation changes to obtain an ABG
PaO2: - answer✔✔how much oxygen is in the blood
SaO2: - answer✔✔how much oxygen is attached to the hemoglobin? ("oxyhemoglobin")
PaCO2: - answer✔✔How much CO2 is in the blood?
Did enough/too much CO2 get "blown off" by the lungs or is it building up?
HCO3: - answer✔✔How much bicarbonate is in the blood?
How are the kidneys working?
Is there a metabolic issue?
Normal pH: - answer✔✔7.35-7.45
Acidosis pH: - answer✔✔< 7.35
Death: 6.8 and less
Alkalosis pH: - answer✔✔> 7.45
EXAM STUDY MATERIALS July 24, 2024 1:33:58 PM
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