A nurse is preparing to administer potassium chloride 10 mEq IV over 1 hr to a client. Available in potassium chloride 10 mEq in 100 mL of 0.9% sodium chloride. The nurse should set the infusion pump to deliver how many mL/hr? (Round the answer to the nearest whole number. Use a leading zero if it applies. Do not use a trailing zero.).
10 mL/hr.
50 mL/hr.
100 mL/hr.
500 mL/hr.
The Correct Answer is C
Choice A rationale:
10 mL/hr would be the correct infusion rate if the client was receiving the entire 10 mEq of potassium chloride in a 100 mL solution over 1 hour. However, the question asks for the rate at which to administer 10 mEq over 1 hour, which means the total volume should be 100 mL/hr.
Choice B rationale:
50 mL/hr would be the correct infusion rate if the client was receiving the entire 10 mEq of potassium chloride in a 100 mL solution over 2 hours. However, the question specifies 1 hour, so the rate should be higher.
Choice C rationale:
This is the correct answer. To administer 10 mEq of potassium chloride in 100 mL over 1 hour, the infusion pump should be set to deliver 100 mL/hr.
Choice D rationale:
500 mL/hr would be the correct infusion rate if the client was receiving the entire 10 mEq of potassium chloride in a 100 mL solution over 10 minutes (1/6th of an hour). However, the question specifies 1 hour, so the rate should be much lower.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
Choice A rationale:
Completely irrigating one eye before irrigating the second eye is the correct action to take when a client receives a chemical splash on their face. This approach helps prevent the potential spread of the chemical from one eye to the other. Irrigation should be done immediately to flush out the chemical and minimize its harmful effects.
Choice B rationale:
Informing the client to blink their eyes rapidly during the irrigation process is not recommended. Blinking may exacerbate the dispersion of the chemical and could lead to further damage to the eyes. Instead, the client should keep their eyes open during irrigation.
Choice C rationale:
Delaying the irrigation process until the type of chemical in the eyes is identified is not appropriate. Time is critical in minimizing the impact of the chemical on the eyes. Immediate irrigation is essential, regardless of the type of chemical, to remove the substance from the eyes.
Choice D rationale:
Asking the client to count the number of fingers held up by the nurse before irrigating their eyes is not relevant in this situation. The priority is to initiate immediate irrigation to remove the chemical from the eyes. Assessing the client's visual acuity can be done later in the evaluation process after the eyes have been irrigated.
Correct Answer is B
Explanation
Choice A rationale:
A defined area of cool, boggy skin is not indicative of a stage 2 pressure injury. Stage 2 pressure injuries involve partial-thickness skin loss, usually appearing as a shallow open ulcer with a red-pink wound bed, without slough or bruising.
Choice B rationale:
A shallow crater involving the epidermis is characteristic of a stage 2 pressure injury. It presents as a partial-thickness skin loss with the loss of the epidermis, and the wound may be superficial and appear as an abrasion, blister, or shallow ulcer.
Choice C rationale:
The reddened area that does not blanch is more indicative of an early-stage pressure injury (Stage 1). In Stage 1, the skin remains intact, but there is non-blanch-able erythema indicating damage to the skin and underlying tissue.
Choice D rationale:
Undermining or tunneling of the skin is not specific to stage 2 pressure injuries. These features may be observed in more advanced stages of pressure injuries, such as stages 3 and 4, where there is full-thickness skin loss with damage to the subcutaneous tissue and underlying structures.
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