To implement nursing care interventions the nurse must be competent in three key areas which are:

Correct Answer: D

Rationale: Competence in nursing interventions requires knowledge (understanding theory and evidence), function (applying that knowledge practically), and specific skills (technical abilities like IV insertion). These three areas ensure a nurse can deliver safe, effective care tailored to patient needs. Leadership anatomy and skills is nonsensical leadership matters, but anatomy isn't a relevant term here, and it's not a trio with skills alone. Experience, advanced education, and skills include valuable elements, but experience isn't a core competency area; it enhances the trio, while advanced education overlaps with knowledge. Skills, leadership, and function mix unrelated concepts leadership is broader than intervention execution. Knowledge, function, and specific skills form a cohesive framework: knowing what to do, how to do it, and performing it proficiently, aligning with nursing standards for competent practice across diverse scenarios.

Correct Answer: D

Rationale: The oxygen reservoir bag in a partial re-breathing mask stores oxygen, allowing the client to re-breathe the first third of exhaled air rich in oxygen, low in CO2 mixed with supplemental O2. This boosts FiO2 (40-60%) cost-effectively, ideal for moderate hypoxia (e.g., pneumonia). Encouraging CO2 re-breathing risks hypercapnia, opposite to intent. Reducing FiO2 contradicts the mask's purpose enhancing oxygen delivery. Precise FiO2 control fits non-rebreathing masks, not partial, which varies slightly. The re-breathing mechanism optimizes oxygen use, making this the correct function per respiratory care standards.

Correct Answer: D

Rationale: All listed are part of Maslow's hierarchy, addressing different levels of human needs.

Correct Answer: C

Rationale: The stethoscope is the primary tool for auscultation.

Correct Answer: D

Rationale: Auscultation precedes percussion and palpation to avoid altering bowel sounds.