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 ["B","C","E"]
Explanation
Choice A rationale:
Keeping the client NPO after midnight is not necessary for an ECG. It is a non-invasive procedure that does not require fasting.
Choice B rationale:
Inspecting the electrode pads is important to ensure good contact with the skin and accurate readings.
Choice C rationale:
Instructing the client to breathe normally during the ECG helps to prevent artifacts in the tracing that could lead to misinterpretation.
Choice D rationale:
Administering an analgesic prior to the procedure is not necessary. An ECG is a painless procedure.
Choice E rationale:
Using alcohol to wipe the skin before placing the electrodes can improve the quality of the ECG by reducing skin impedance.
Correct Answer is A
Explanation
Choice A rationale:
Swollen, bleeding gums are a common symptom of Vitamin C deficiency, also known as scurvy. Vitamin C is essential for the health of gums and teeth.
Choice B rationale:
Pale, brittle nails are not typically associated with Vitamin C deficiency. They can be a sign of other conditions such as iron deficiency anemia.
Choice C rationale:
Inflammation of the tongue, or glossitis, can be caused by various conditions, including certain vitamin deficiencies, but it’s not a common sign of Vitamin C deficiency.
Choice D rationale:
Dry, red conjunctiva can be a symptom of various eye conditions, but it’s not typically associated with Vitamin C deficiency.
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