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 A
Explanation
Choice A reason: To calculate BMI, the nurse needs the client's height and weight. BMI is calculated by dividing the weight in kilograms by the square of height in meters.
Choice B reason: Skinfold thickness is used to estimate body fat percentage, not BMI.
Choice C reason: Waist circumference is used as a measure of abdominal obesity, not for calculating BMI.
Choice D reason: Daily calorie intake is not required for BMI calculation; it is more relevant for dietary assessments
and weight management plans.
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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