A nurse is assisting with teaching a class about pulmonary circulation. The nurse should include that blood flow from the right ventricle leaves the heart to go to the lungs through which of the following locations?

Pulmonary artery.

Left atrium.

Pulmonary veins.

Left ventricle.

Answer and Explanation

The Correct Answer is A

Choice A rationale:
The right ventricle pumps deoxygenated blood to the lungs via the pulmonary artery. This is the only artery in the body that carries deoxygenated blood.
Choice B rationale:
The left atrium receives oxygenated blood from the lungs via the pulmonary veins, not the right ventricle.
Choice C rationale:
Pulmonary veins carry oxygenated blood from the lungs to the left atrium, not from the right ventricle to the lungs.
Choice D rationale:
The left ventricle pumps oxygenated blood to the rest of the body through the aorta, not to the lungs.

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Correct Answer is B

Explanation

Choice A rationale:
Reminding the client not to turn from side to side is not the most appropriate action. While it is important to limit movement after a cardiac catheterization, it is not the most critical action.
Choice B rationale:
Checking pedal pulses every 15 min is the most appropriate action. This is to monitor for signs of vascular compromise, which can occur after a cardiac catheterization with a femoral artery approach.
Choice C rationale:
Keeping the client in high-Fowler’s position for 6 hr is not the most appropriate action. While positioning can be important, it is not the most critical action after a cardiac catheterization with a femoral artery approach.
Choice D rationale:
Performing passive range-of-motion for the affected extremity is not the most appropriate action. While it is important to maintain mobility, it is not the most critical action after a cardiac catheterization with a femoral artery approach.

A. Phenytoin 100 mg PO every 8 hr. B. Lisinopril 20 mg PO every 12 hr. C. Hold for systolic BP less than 110 mm Hg. D. Morphine 2.5 mg IV bolus PRN for incisional pain. E. Regular insulin 7 units subcutaneous 30 min before breakfast and dinner.

Correct Answer is C

Explanation

Choice A rationale:
Phenytoin 100 mg PO every 8 hr is a standard prescription for controlling seizures.
Choice B rationale:
Lisinopril 20 mg PO every 12 hr is a typical dose for treating high blood pressure.
Choice C rationale:
“Hold for systolic BP less than 110 mm Hg” is unclear because it does not specify which medication to hold.
Choice D rationale:
Morphine 2.5 mg IV bolus PRN for incisional pain is a standard prescription for pain control after surgery.
Choice E rationale:
Regular insulin 7 units subcutaneous 30 min before breakfast and dinner is a common prescription for managing blood glucose levels in diabetes patients.

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A nurse is assisting with teaching a class about pulmonary circulation. The nurse should include that blood flow from the right ventricle leaves the heart to go to the lungs through which of the following locations?

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Naxlex Comprehensive Predictor Exams

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