Correct Answer: A

Rationale: The correct answer is A because during the first phase of the nursing process (assessment), the nurse gathers a comprehensive database of information about the patient's health status. This includes collecting subjective and objective data to form a baseline for further decision-making. Identifying nursing diagnoses (B) occurs in the second phase (diagnosis), intervening based on priorities of patient care (C) is part of the third phase (planning), and determining outcomes (D) is done in the final phase (evaluation). Therefore, completing a comprehensive database is the most appropriate action in the first phase.

Correct Answer: A

Rationale: The correct answer is A: Anxiety related to barium enema. This is the correct choice because nursing diagnoses should focus on the patient's actual or potential health problems, not just medical conditions. Anxiety is a common response to medical procedures like a barium enema. It is essential for the nurse to address the patient's emotional and psychological needs. Summary: B: Impaired gas exchange related to asthma is a medical diagnosis, not a nursing diagnosis. Nursing diagnoses focus on the patient's response to the medical condition. C: Impaired physical mobility related to incisional pain is a potential nursing diagnosis, but the focus should be on the patient's response to the pain, not just the pain itself. D: Nausea related to adverse effect of cancer medication is also a medical diagnosis. Nursing diagnoses should address the patient's response to the medication side effects, not just the side effects themselves.

Correct Answer: D

Rationale: The correct answer is D because pleural effusion is the accumulation of fluid in the pleural space. When auscultating the lungs of a client with pleural effusion, the examiner would note decreased or absent breath sounds over the area where the fluid has accumulated. This is due to the fluid blocking the transmission of sound through the lungs. Pronounced breath sounds (choice A) would not be present due to the fluid obstructing the normal sound transmission. Expiratory wheezes (choice B) are associated with airway obstruction, not fluid accumulation. Friction rub (choice C) is a dry, grating sound heard with inflammation of the pleura, not specifically related to pleural effusion.

Correct Answer: B

Rationale: The correct answer is B: Respiratory rate of 8 breaths/min. Morphine is an opioid that can cause respiratory depression as a side effect. A respiratory rate of 8 breaths/min indicates hypoventilation, which is a potential adverse effect of morphine. This is a critical finding that requires immediate intervention to prevent respiratory failure or arrest. A: Voiding of 350mL of concentrated urine in 8 hours is not directly related to morphine's adverse effects. Morphine can cause urinary retention, not increased voiding. C: Irregular heart rate of 82 beats/min is within normal range and not a typical adverse effect of morphine. Morphine can cause bradycardia or tachycardia, but not irregular heart rate specifically. D: Pupils constricted and equal is a common side effect of morphine due to its effect on the central nervous system. This finding does not suggest an adverse effect; it is an expected pharmac

Correct Answer: C

Rationale: The correct answer is C: Slowing ventilation. The lungs regulate acid-base balance by controlling carbon dioxide levels through ventilation. Increasing ventilation helps expel excess carbon dioxide, thus regulating pH. Slowing ventilation would lead to CO2 buildup and an imbalance in acid-base levels. Excreting HCO3- into the blood (choice A) helps maintain pH, while increasing ventilation (choice D) aids in removing excess CO2. Therefore, slowing ventilation is the exception as it would disrupt the acid-base balance by not effectively regulating carbon dioxide levels.