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: Sterile gloves are not required for inserting an NG tube; clean gloves are sufficient as the nasal
cavity is not a sterile environment.
Choice B reason: The client should not be asked to cough while inserting the NG tube as this could disrupt the placement process. Instead, the client may be asked to swallow to facilitate the passage of the tube.
Choice C reason: Placing the client into a left lateral position is not the standard position for NG tube insertion. The
client should be in an upright or semi-Fowler's position to aid in the insertion process.
Choice D reason: Determining the length of the NG tube to be inserted is a crucial step to ensure that the tube
reaches the stomach without coiling in the esophagus or extending into the small intestine.
Correct Answer is A
Explanation
Choice A reason: Tachycardia, or an abnormally rapid heart rate, is a common finding in circulatory overload due to
the increased volume of blood the heart must pump.
Choice B reason: Weight loss is not typically associated with circulatory overload. In fact, weight gain may occur due
to fluid retention.
Choice C reason: Diaphoresis, or excessive sweating, can be associated with circulatory overload as the body attempts to cool down due to the increased blood volume and workload on the heart.
Choice D reason: Hypotension, or low blood pressure, is not a usual finding in circulatory overload. Instead, hypertension may be more likely due to the increased volume of fluid in the blood vessels.
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