Correct Answer: A

Rationale: Propranolol is a nonselective beta-adrenergic blocker that blocks both beta1 and beta2 receptors. Blockade of beta2 receptors in the lungs causes bronchoconstriction, making it contraindicated in clients with asthma. Using propranolol in asthma can exacerbate bronchoconstriction and potentially lead to respiratory distress or exacerbation of asthma symptoms.

Correct Answer: C

Rationale: The correct answer is 'C: Sore throat.' Doxorubicin is known to have immunosuppressive effects, which can predispose the client to infections. A sore throat can be an early sign of infection, and prompt reporting to the healthcare provider is crucial to initiate appropriate interventions and prevent complications.

Correct Answer: C

Rationale: Flumazenil is a specific benzodiazepine antagonist that competitively reverses the sedative effects of benzodiazepines like Diazepam. In cases of oversedation or respiratory depression caused by benzodiazepines, administering Flumazenil can help reverse the effects and restore the client's consciousness and respiratory drive.

Correct Answer: C

Rationale: The correct action the nurse should plan to take when administering Propranolol to a client with dysrhythmia is to assist the client when transitioning to a sitting or standing position. Propranolol can cause orthostatic hypotension, leading to dizziness during position changes, so it is essential to help the client move slowly to prevent falls or injuries.

Correct Answer: A

Rationale: The correct instruction for taking Metformin is to take it with food. This helps reduce gastrointestinal side effects and ensures better absorption of the medication.