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: An IV infusion of dextrose 10% in water can cause hyperglycemia, which is an elevated blood sugar
level.
Choice B reason: Hypovolemia, or decreased blood volume, is not a typical adverse effect of dextrose infusion.
Choice C reason: Hypercalcemia, or high calcium levels in the blood, is not associated with dextrose infusion.
Choice D reason: While dextrose infusion can affect electrolyte balance, hypokalemia, or low potassium levels, is not
the primary concern with dextrose infusion.
Correct Answer is B
Explanation
Choice A reason: Aluminum-containing antacids are more likely to cause constipation rather than diarrhea.
Choice B reason: Magnesium-containing antacids can cause diarrhea because magnesium can act as an osmotic laxative, drawing water into the intestines and increasing peristalsis.
Choice C reason: While antibiotics can disrupt the gut flora and potentially cause diarrhea, they are not the best
answer when compared to magnesium-containing antacids specifically known for this side effect.
Choice D reason: Anticholinergics/antispasmodics typically reduce gastrointestinal motility, which would more likely lead to constipation instead of diarrhea.
Choice E reason: Opioid narcotics are known to cause constipation due to reduced gut motility, not diarrhea
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