Correct Answer: B

Rationale: The correct answer is B: Teach tracheal suctioning techniques. Tracheal suctioning is crucial for maintaining a clear airway in clients with a tracheostomy. Without proper suctioning, secretions can accumulate and cause airway obstruction or respiratory infections. Educating the client on how to perform suctioning safely is a priority for discharge planning. Choices A, C, and D are important aspects of tracheostomy care, but teaching tracheal suctioning techniques takes precedence due to its direct impact on airway patency and preventing complications.

Correct Answer: A

Rationale: The most important instruction for a patient following cataract extraction is to avoid straining, bending, or lifting heavy objects. These activities can increase intraocular pressure and potentially lead to complications such as bleeding or dislocation of the intraocular lens. Choices B, C, and D are not as critical in the immediate post-operative period. Limiting sunlight exposure and using direct lighting when reading are important but not as crucial as avoiding activities that can increase intraocular pressure. Irrigating the conjunctiva with saline before applying ointment is not a standard post-cataract surgery instruction.

Correct Answer: D

Rationale: Purulent drainage suggests an infection at the wound site. Reviewing the culture and sensitivity results will guide appropriate antibiotic treatment by identifying the causative organisms and their antibiotic sensitivities. Elevated white blood cells indicate infection but do not specify the organism. Creatinine and hemoglobin values are unrelated to wound infections.

Correct Answer: A

Rationale: Administering oxygen at 2 L/min via nasal cannula is the nurse's first action when a client with COPD presents with a respiratory rate of 32 breaths per minute and an oxygen saturation of 86%. Oxygen therapy helps improve oxygen saturation in patients with COPD and respiratory distress. While notifying the healthcare provider is important, immediate intervention to improve oxygenation takes priority. Positioning the client in high Fowler's position can also assist with breathing but is not the initial action in this scenario. Suctioning the airway is not indicated unless there are secretions obstructing the airway, which is not mentioned in the scenario.

Correct Answer: A

Rationale: The correct answer is A: 'Take the medication with a full glass of water.' It is crucial for the nurse to teach the client to take ciprofloxacin with a full glass of water to prevent crystalluria, a potential side effect of the medication. Choice B is incorrect because ciprofloxacin does not require avoiding direct sunlight. Choice C is incorrect as taking the medication with meals is not necessary to prevent nausea. Choice D is incorrect as dizziness is not a common reason to discontinue ciprofloxacin.