Question 19
CORRECT
To assess the kidney function of a patient with an indwelling urinary (Foley)
catheter, the nurse measures his hourly urine output. She should notify the
physician if the urine output is:
Less than 30 ml/hour
64 ml in 2 hours
90 ml in 3 hours
125 ml in 4 hours
Question 19 Explanation:
Option A: A urine output of less than 30ml/hour indicates hypovolemia or
oliguria, which is related to kidney function and inadequate fluid intake.
Question 20
CORRECT
An additional Vitamin C is required during all of the following periods except:
Infancy
Young adulthood
Childhood
Pregnancy
Question 20 Explanation:
Option B: Additional Vitamin C is needed in growth periods, such as infancy
and childhood, and during pregnancy to supply demands for fetal growth
and maternal tissues. Other conditions requiring extra vitamin C include
wound healing, fever, infection and stress.
Question 21
WRONG
The most common deficiency seen in alcoholics is:
Thiamine
Riboflavin
Pyridoxine
Pantothenic acid
Question 21 Explanation:
Option A: Chronic alcoholism commonly results in thiamine deficiency and
other symptoms of malnutrition.
Question 22
CORRECT
A prescribed amount of oxygen s needed for a patient with COPD to prevent:
Cardiac arrest related to increased partial pressure of carbon dioxide in arterial
blood (PaCO2)
Circulatory overload due to hypervolemia
Respiratory excitement
Inhibition of the respiratory hypoxic stimulus
Question 22 Explanation:
Option D: Delivery of more than 2 liters of oxygen per minute to a patient
with chronic obstructive pulmonary disease (COPD), who is usually in a state
of compensated respiratory acidosis (retaining carbon dioxide (CO2)), can
inhibit the hypoxic stimulus for respiration. Option A: An increased partial
pressure of carbon dioxide in arterial blood (PACO2) would not initially result
in cardiac arrest. Options B and C: Circulatory overload and respiratory
excitement have no relevance to the question.
Question 23
CORRECT
Examples of patients suffering from impaired awareness include all of the
following except:
A semiconscious or overfatigued patient
A disoriented or confused patient
A patient who cannot care for himself at home
A patient demonstrating symptoms of drugs or alcohol withdrawal
Question 23 Explanation:
Option C: A patient who cannot care for himself at home does not necessarily
have impaired awareness; he may simply have some degree of immobility.
Question 24
WRONG
All of the following can cause tachycardia except:
Fever
Exercise
Sympathetic nervous system stimulation
Parasympathetic nervous system stimulation
Question 24 Explanation:
Option D: Parasympathetic nervous system stimulation of the heart
decreases the heart rate as well as the force of contraction, rate of impulse
conduction and blood flow through the coronary vessels. Fever, exercise, and
sympathetic stimulation all increase the heart rate.
