Correct Answer: C

Rationale: The correct answer is C: Helper T cells. Helper T cells play a crucial role in activating B cells by releasing cytokines that stimulate B cell proliferation and differentiation. They also help in the production of antibodies. Cytotoxic T cells (A) are involved in cell-mediated immunity, not humoral immunity. Suppressor T cells (B) regulate the immune response and do not directly assist in B cell activation. Neutrophils (D) are phagocytic cells involved in innate immunity, not in activating B cells in humoral immunity.

Correct Answer: B

Rationale: Step-by-step rationale for choice B being correct: 1. Blood pressure is vital in this scenario due to prednisone discontinuation. 2. Abruptly stopping prednisone can lead to adrenal insufficiency. 3. Adrenal insufficiency can cause hypotension, a life-threatening condition. 4. Monitoring blood pressure can help detect and manage potential complications. Summary of other choices: A: Breath sounds – Important but not the priority in this specific situation. C: Capillary refill – Useful for assessing circulation but not urgent in this context. D: Butterfly rash – A characteristic of lupus, but not a critical concern in this scenario.

Correct Answer: A

Rationale: The correct answer is A: Completes a comprehensive database. During the first phase of the nursing process (assessment), the nurse collects data to establish a comprehensive database of the patient's health status. This information serves as the foundation for identifying nursing diagnoses, planning interventions, and evaluating outcomes. Identifying nursing diagnoses (B) occurs in the second phase (diagnosis), intervening based on priorities (C) in the third phase (planning), and determining outcomes achieved (D) in the fourth phase (evaluation). Completing a comprehensive database is crucial in the initial assessment phase to gather accurate information for the subsequent steps in the nursing process.

Correct Answer: B

Rationale: The correct answer is B because teaching the client about both non-pharmacologic and pharmacologic methods for managing hypertension is a crucial nursing intervention to empower the client in their self-care and treatment plan. This intervention helps the client understand the importance of lifestyle modifications and medication adherence in controlling blood pressure. A: The nurse taking the temperature in different positions is not directly related to assessing hypertension. C: Taking BP in different positions is important for orthostatic hypotension, not specifically for hypertension. D: Weighing the client each morning is not a direct nursing intervention for assessing hypertension.

Correct Answer: B

Rationale: The correct answer is B: Presbycusis. Presbycusis refers to age-related hearing loss, commonly affecting higher frequencies. As people age, changes in the inner ear structures can lead to hearing loss. Otoplasty (A) is a surgical procedure to correct ear deformities, not related to aging. Otalgia (C) refers to ear pain, not specifically related to aging. Tinnitus (D) is the perception of ringing or buzzing in the ears, which can occur at any age and is not exclusive to age-related hearing loss.