Correct Answer: C

Rationale: When children are hospitalized, it is common for them to regress in toileting behaviors due to the unfamiliar environment and stress. It is important for the nurse to provide reassurance to the parents in such situations. Option A is incorrect because suggesting neurological complications without evidence could cause unnecessary alarm. Option B is not the most appropriate response as the focus should be on explaining the common regression in toileting. Option D may not address the underlying reasons for the regression and may not be practical during the hospital stay.

Correct Answer: C

Rationale: Asking the client to describe the pain is the most appropriate approach to assess the quality of pain. It provides valuable qualitative information that aids in understanding the nature, cause, and potential management strategies for the headache. While pain rating scales like the Wong-Baker Faces scale and using vital signs can help quantify pain severity, they do not offer specific descriptive details that can give insights into the type and characteristics of the pain experienced by the client.

Correct Answer: B

Rationale: The correct first action for the nurse to take in this scenario is to obtain a clean-catch midstream urine specimen. The client's symptoms of confusion, nausea, dysuria, and urgency are suggestive of a urinary tract infection (UTI). To confirm the diagnosis and identify the causative organism, a urine specimen should be collected before initiating any treatment. Initiating intravenous fluids (Choice A) may be necessary later based on the client's condition but is not the initial priority. Administering antibiotics (Choice C) should be done after confirming the diagnosis through urine culture. Starting a Foley catheter (Choice D) to obtain a sterile sample is more invasive and should not be the first step in the assessment and management of a suspected UTI.

Correct Answer: A

Rationale: The correct answer is A: 83. The pharmacy provided the infusion at 10 million units per liter, which requires a rate of 83 mL/hour. To calculate this, multiply the dosage by the volume of the IV solution and divide by the concentration of the IV solution in million units: 10 million units per liter x 8.3 L = 83 mL/hour. Choices B, C, and D are incorrect as they do not align with the calculation based on the given information.

Correct Answer: C

Rationale: A potassium level of 6.2 mEq/L indicates hyperkalemia, which is dangerous and requires immediate treatment. Administering a potassium-binding medication will help lower potassium levels and prevent life-threatening complications.