Correct Answer: B

Rationale: Warfarin is an anticoagulant that increases the risk of bleeding. Bruising is a common sign of potential bleeding in clients taking warfarin. Monitoring for bruising is essential as it can indicate a risk of bleeding that needs further assessment and management.

Correct Answer: A

Rationale: The correct answer is A: Bradycardia. Digoxin can lead to bradycardia due to its effect on slowing down the heart rate. Monitoring the client's heart rate is essential to detect and manage this potential side effect.

Correct Answer: B

Rationale: Tremors are a common symptom of theophylline toxicity. Other symptoms that may indicate theophylline toxicity include nausea, vomiting, and seizures. It is important for the nurse to monitor the client closely for these signs of toxicity and report them promptly to the healthcare provider to prevent further complications.

Correct Answer: B

Rationale: Montelukast is a leukotriene receptor antagonist used for the long-term control of asthma symptoms by reducing inflammation in the airways. It is not typically used for immediate relief during acute asthma attacks, where short-acting bronchodilators are more appropriate. Montelukast does not specifically target exercise-induced bronchospasm or allergic rhinitis symptoms.

Correct Answer: B

Rationale: Warfarin is an anticoagulant that increases the risk of bleeding. Bruising is a common sign of potential bleeding in clients taking warfarin. Monitoring for bruising is essential as it can indicate a risk of bleeding that needs further assessment and management.