A nurse is planning to calculate a client's cardiac output. Which of the following data should the nurse obtain to calculate the cardiac output?
Temperature.
Heart rate.
Blood pressure.
Respiratory rate.
The Correct Answer is B
Choice A rationale:
Temperature does not directly affect cardiac output, which is the volume of blood the heart pumps per minute.
Choice B rationale:
Heart rate is needed to calculate cardiac output as it is the number of heart beats per minute.
Choice C rationale:
Blood pressure is not used in the calculation of cardiac output.
Choice D rationale:
Respiratory rate does not directly influence cardiac output.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
Choice A rationale:
Chambers refer to the four compartments of the heart, not a layer of the heart.
Choice B rationale:
Pericardium is the sac that surrounds the heart, not a layer of the heart itself.
Choice C rationale:
Epicardium is the outermost layer of the heart, not the innermost.
Choice D rationale:
Endocardium is indeed the innermost layer of the heart, lining the inner surfaces of the heart chambers and valves.
Correct Answer is C
Explanation
Choice A rationale:
Captopril is an ACE inhibitor, not a beta blocker. It’s used to treat hypertension, but it’s not a beta blocker.
Choice B rationale:
Warfarin is an anticoagulant, not a beta blocker. It’s used to prevent blood clots, not to treat hypertension.
Choice C rationale:
Atenolol is a beta blocker. It’s often prescribed for hypertension because it can reduce the workload on the heart and help it beat more regularly.
Choice D rationale:
Aspirin is a nonsteroidal anti-inflammatory drug (NSAID), not a beta blocker. It’s often used to reduce pain or inflammation, and can help prevent heart attacks in some people, but it’s not used to treat hypertension.
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