Correct Answer: B

Rationale: An average full-term infant requires about 120 calories per kilogram per day at 1-2 months old. This amount is essential for their growth and development during this critical stage. Choices A, C, and D are incorrect as they provide calorie amounts that are either too high or too low for an average full-term infant at 1-2 months old, which could potentially lead to health issues or inadequate nutrition.

Correct Answer: C

Rationale: Evidence-based practice involves integrating clinical expertise with the best available evidence to make informed decisions about patient care. Choice A is incorrect as evidence-based practice relies on current and relevant research. Choice B is incorrect as it emphasizes the importance of not relying solely on personal experience. Choice D is incorrect as patient preferences play a significant role in evidence-based practice.

Correct Answer: C

Rationale: The best plan of action for the nurse is to notify the physician and request orders regarding Serge's oral medications. By involving the physician, the nurse ensures that appropriate instructions are obtained, considering Serge's medical condition and the need for NPO status for the diagnostic test. Administering the medications without medical guidance (choice A) can be risky, as it may affect the test results. Notifying the diagnostic department (choice B) is not the most direct and appropriate action; the physician is the primary healthcare provider responsible for medication orders. Administering the medications with water before the test (choice D) is not advisable when the patient is supposed to be NPO, as it can interfere with the test requirements.

Correct Answer: C

Rationale: All staff members should document the care they provided as part of their accountability and to ensure accurate and comprehensive records. In healthcare settings, it is essential for all staff to document the care they deliver for continuity of care and legal purposes. The registered nurse may sign off on the documentation for oversight purposes, but the responsibility of documenting care extends to all staff involved in patient care. Choices A and B incorrectly limit the responsibility to specific roles, while choice D inaccurately suggests that only the registered nurse signs off on the documentation, overlooking the importance of comprehensive documentation by all staff members involved.

Correct Answer: D

Rationale: The correct answer is 'Tall peaked T waves.' Tall peaked T waves are characteristic ECG changes associated with hyperkalemia. In hyperkalemia, the elevated potassium levels affect the myocardium, leading to changes in the ECG. ST depression (Choice A) is more commonly associated with myocardial ischemia or infarction. Inverted T wave (Choice B) is seen in conditions like myocardial ischemia or CNS events. Prominent U wave (Choice C) is typically associated with hypokalemia or certain medications. Therefore, in this scenario, the nurse would expect to note tall peaked T waves on the electrocardiogram due to the elevated potassium level.