A nurse is preparing to administer potassium chloride (KCL). The provider prescribes potassium chloride (KCL) 20 mEq suspension PO daily. The bottle is labeled KCL elixir, 10 mEq/mL. Which of the following should the nurse administer?
2 mL.
2.5 mL.
1.5 mL.
1 mL.
The Correct Answer is A
Choice A rationale:
The provider prescribes 20 mEq of KCL. The bottle is labeled as 10 mEq/mL. Therefore, to administer 20 mEq, the nurse should give 2 mL (20 mEq ÷ 10 mEq/mL = 2 mL).
Choice B rationale:
Administering 2.5 mL would give 25 mEq of KCL, which is more than the prescribed dose.
Choice C rationale:
Administering 1.5 mL would give 15 mEq of KCL, which is less than the prescribed dose.
Choice D rationale:
Administering 1 mL would give 10 mEq of KCL, which is half the prescribed dose.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
Choice A rationale:
Cardiac output is the amount of blood the heart pumps through the circulatory system in a minute. It is not the volume of blood ejected from the ventricles during each beat.
Choice B rationale:
The cardiac cycle refers to the sequence of events that occur when the heart beats. It is not the volume of blood ejected from the ventricles during each beat.
Choice C rationale:
Systole is the phase of the heartbeat when the heart muscle contracts and pumps blood from the chambers into the arteries. It is not the volume of blood ejected from the ventricles during each beat.
Choice D rationale:
Stroke volume is the volume of blood ejected from the ventricles during each beat. This is the correct answer.
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.
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