Through which structure does blood flow from the heart to the lungs in the pulmonary circulation?
Left ventricle
Pulmonary artery
Left atrium
Pulmonary veins
The Correct Answer is B
Choice A reason: The left ventricle pumps oxygenated blood into the aorta and then to the rest of the body, not
directly to the lungs.
Choice B reason: The pulmonary artery is the correct answer because it carries deoxygenated blood from the right
ventricle of the heart to the lungs for oxygenation.
Choice C reason: The left atrium receives oxygenated blood from the lungs through the pulmonary veins, so it is not
involved in sending blood to the lungs.
Choice D reason: The pulmonary veins carry oxygenated blood from the lungs to the left atrium, not from the heart
to the lungs.
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Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
Choice A reason: Decreased bowel sounds are not typically associated with diarrhea. Diarrhea usually presents with
increased bowel sounds due to hyperactive gastrointestinal motility.
Choice B reason: A rigid abdomen may suggest an acute abdomen that requires immediate medical attention, not a common finding in uncomplicated cases of diarrhea.
Choice C reason: Hypothermia is not a common finding in diarrhea. Fever may occur if the diarrhea is infectious in
origin.
Choice D reason: Dehydration is a common finding in patients with prolonged diarrhea due to excessive loss of fluids
and electrolytes.
Correct Answer is B
Explanation
Choice A reason: Metabolic alkalosis is not commonly associated with COPD. It occurs when there is an accumulation
of bicarbonate or a loss of hydrogen ions.
Choice B reason: Respiratory acidosis is a common acid-base imbalance in clients with COPD. It occurs due to the retention of CO2 as a result of reduced respiratory function.
Choice C reason: Metabolic acidosis is characterized by a decrease in serum bicarbonate and is not typically a direct
result of COPD.
Choice D reason: Respiratory alkalosis occurs when there is a decrease in CO2 levels, which is the opposite of what is expected in COPD.
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