Correct Answer: C

Rationale: The correct answer is C because maintaining eye contact with the patient during explanations is a non-verbal way to show attentiveness and empathy, which can help reduce the patient's anxiety. This behavior demonstrates active listening and engagement, making the patient feel heard and understood. A: Staying in the patient's room to complete documentation is not an effective use of presence as it does not involve direct interaction with the patient. B: Having a conversation in the patient's room that excludes the patient is also not an effective use of presence as it does not involve engaging with the patient. D: Focusing on specific nursing care tasks while in the patient's room, although important, may not necessarily demonstrate presence in reducing the patient's anxiety.

Correct Answer: A

Rationale: The correct answer is A: Remove the patient's rings first. This is crucial to prevent constriction and swelling due to potential allergic reactions or inflammation from bee stings. Removing rings allows for proper circulation and prevents complications like compartment syndrome. Ice packs (B) can be applied after removing the rings to reduce swelling. Calamine lotion (C) can provide relief for itching but is not as urgent as ring removal. Diphenhydramine (D) can be given later for systemic allergic reactions but should not take precedence over removing the rings.

Correct Answer: C

Rationale: The correct answer is C because a respiratory rate of 32 breaths/minute indicates increased work of breathing, which could be due to secretions that need to be suctioned. High respiratory rate may suggest inadequate oxygenation and ventilation. Oxygen saturation of 93% (choice A) is within an acceptable range and does not necessarily indicate the need for suctioning. Time since last suctioning (choice B) should be considered but is not as immediate an indication as an increased respiratory rate. Occasional audible expiratory wheezes (choice D) may be indicative of other respiratory issues but do not directly indicate the need for suctioning.

Correct Answer: C

Rationale: The correct answer is C because obtaining certification in critical care nursing demonstrates the nurse's personal expertise in the specialty. Certification confirms the nurse's advanced knowledge and skills, enhancing professional credibility and potential for career advancement. This choice focuses on the individual nurse's competency and dedication to the specialty. Incorrect choices: A: Salary increase is not the primary benefit of certification, although it may be a potential outcome. B: Certification is often preferred but not always required to work in critical care. D: Employers may encourage certification, but it is not always mandated.

Correct Answer: A

Rationale: The correct answer is A because evaluating morning lab results is crucial to monitor the patient's condition before dialysis. Abnormal results may impact the dialysis treatment plan. Option B is incorrect as administering antihypertensive medications is not directly related to dialysis. Option C is incorrect as assessing the dialysis access site is the responsibility of the dialysis team. Option D is incorrect as weighing the patient is not typically done immediately before dialysis.