Correct Answer: B

Rationale: The correct answer is B because inhaling deeply and slowly elevates the cylinder on the spirometer, promoting lung expansion. Choice A is incorrect as exhaling deeply before inhaling is not the correct technique for using an incentive spirometer. Choice C is incorrect as inhaling quickly through the spirometer does not promote optimal lung expansion. Choice D is incorrect as inhaling several short breaths does not facilitate the proper use of an incentive spirometer.

Correct Answer: A

Rationale: The correct answer is A: A history of gastroesophageal reflux disease. Clients with gastroesophageal reflux disease have a higher risk of aspiration during tube feeding due to the potential for reflux of stomach contents into the lungs. This increases the risk of aspiration pneumonia. Choices B, C, and D are incorrect. High osmolarity formulas may cause diarrhea but do not directly increase the risk of aspiration. Sitting in a high-Fowler's position actually reduces the risk of aspiration by promoting proper digestion and reducing the chance of regurgitation. A residual of 65 mL 1 hour postprandial is within an acceptable range and does not directly indicate a risk for aspiration.

Correct Answer: B

Rationale: The correct answer is lack of sleep (choice B). In acute mania, lack of sleep can exacerbate symptoms, lead to exhaustion, and pose serious risks to the client's well-being. Addressing the client's sleep deprivation is a priority as it can impact their overall health and recovery. Increased speech (choice A) and agitation (choice C) are common in acute mania but do not pose immediate physical risks like lack of sleep. Poor concentration (choice D) is also a symptom of acute mania but addressing sleep deprivation takes precedence due to its severe consequences.

Correct Answer: C

Rationale: When caring for a client diagnosed with delirium, the most important condition for the nurse to investigate is prescription drug intoxication. Delirium can be caused by various factors, and prescription drug intoxication is a common reversible cause. Investigating this factor first is crucial to identify and address the underlying cause promptly. Choices A, B, and D are less likely to be directly associated with delirium compared to prescription drug intoxication. While cancer, impaired hearing, and heart failure can have their complications and effects, they are not typically the primary causes of delirium in a client.

Correct Answer: B

Rationale: When a client with a tracheostomy is experiencing respiratory distress, the immediate priority for the nurse is to suction the tracheostomy. This action helps clear the airway of secretions and ensures that the client can breathe effectively. Increasing the oxygen flow rate may be necessary but addressing the airway obstruction is more critical. Notifying the physician immediately is important but may cause a delay in addressing the immediate need for airway clearance. Administering a bronchodilator may help with bronchospasm but should not take precedence over ensuring a clear airway in a client with respiratory distress.