Correct Answer: A

Rationale: Correct Answer: Increasing the client's oxygen flow rate should be the nurse's first action. Hypoxia is a common complication of pneumonia and can lead to confusion. Providing adequate oxygenation is essential in addressing hypoxia and improving the client's condition.\nOption B: Obtaining vital signs is important but addressing hypoxia takes precedence in the setting of new onset confusion.\nOption C: Administering an antibiotic is important for treating pneumonia but addressing hypoxia and confusion is the priority.\nOption D: Notifying the provider may be necessary but addressing the immediate physiological need of oxygenation should come first.

Correct Answer: B

Rationale: The absence of adventitious breath sounds indicates that furosemide is effective in managing heart failure. Adventitious breath sounds such as crackles indicate fluid accumulation in the lungs, a common complication of heart failure. Therefore, the absence of these abnormal sounds suggests that furosemide is effectively reducing fluid overload. Elevated blood pressure (choice A) is not a desired outcome in heart failure management. Weight gain (choice C) and decreased urine output (choice D) are signs of fluid retention and ineffective diuresis, indicating that furosemide is not working effectively.

Correct Answer: A

Rationale: The correct answer is A: Fine crackles. Fine crackles suggest fluid in the lungs, which could indicate a serious respiratory issue like pulmonary edema. This sound should be reported to the provider for further evaluation and possible intervention. Rhonchi (choice B) are low-pitched wheezing sounds often caused by secretions in the larger airways, wheezing (choice C) is a high-pitched whistling sound usually caused by narrowed airways, and stridor (choice D) is a high-pitched sound heard on inspiration that indicates upper airway obstruction. While these sounds also require attention, fine crackles are more indicative of fluid accumulation in the lungs, making them the priority for reporting in this scenario.

Correct Answer: C

Rationale: The correct answer is C: Restore the client's self-control. When managing a physically assaultive client, the nurse's responsibility is to help the client regain control over their actions and emotions. This is crucial in preventing harm to themselves and others. Restricting the client to the room (Choice A) may escalate the situation and is not a therapeutic approach. Placing the client under one-to-one supervision (Choice B) is important for safety but does not address the root cause of the behavior. Clearing the area of other clients (Choice D) is necessary for safety but does not directly address the client's self-control. Therefore, the priority in managing an assaultive client is to focus on restoring their self-control.

Correct Answer: C

Rationale: The correct solution to maintain fluid and electrolyte balance during NG tube irrigation is 0.9% sodium chloride. This solution is isotonic and helps prevent electrolyte imbalances. Using tap water or sterile water can lead to electrolyte disturbances due to their hypotonic nature, while 0.45% sodium chloride is hypotonic and may cause further imbalances in the client's electrolyte levels.