Correct Answer: B

Rationale: Phenytoin can cause gingival hyperplasia, so good oral hygiene is important to prevent complications.

Correct Answer: A

Rationale: Compression therapy is essential for managing venous leg ulcers as it helps improve venous return, reduces edema, and promotes healing. By applying compression therapy to the affected leg, the nurse can assist in enhancing circulation, reducing swelling, and aiding in the healing process. Keeping the affected leg in a dependent position can worsen venous insufficiency. Massaging the area surrounding the ulcer is contraindicated as it can cause further damage and delay healing. While encouraging the client to elevate the leg is beneficial, it is not as effective as compression therapy for promoting healing in venous leg ulcers.

Correct Answer: D

Rationale: In a client experiencing a sudden drop in blood pressure after epidural anesthesia, the first action the nurse should take is to place the client in a lateral position. This position helps improve venous return and cardiac output by relieving aortocaval compression. Administering oxygen via nasal cannula may be necessary if the client shows signs of respiratory distress, but it is not the first priority in this situation. Administering an intravenous fluid bolus can help stabilize blood pressure, but repositioning the client takes precedence. Preparing the client for an emergency cesarean section is not indicated solely based on a sudden drop in blood pressure after epidural anesthesia; this step would be considered if other complications arise.

Correct Answer: D

Rationale: In this scenario, the most important intervention for a male client with schizophrenia who is diaphoretic and pacing the hallway is to carefully observe the client throughout the shift. Diaphoresis and pacing can be indicators of agitation or distress in clients with schizophrenia. Careful observation is crucial to monitor the client's safety, assess for any potential escalation of symptoms, and provide timely intervention if needed. Taking the client's temperature and blood pressure (Choice A) may not address the immediate need for safety and observation. Encouraging the client to rest (Choice B) may not be effective if the client is agitated. Planning an activity involving physical exercise (Choice C) could potentially exacerbate the situation rather than addressing the immediate need for observation and safety.

Correct Answer: D

Rationale: In emergency situations where immediate surgery is required to save a patient's life and no family members are available, consent can be waived to proceed with necessary interventions. The priority in this scenario is to proceed with surgery preparation without waiting for consent, as any delay could jeopardize the patient's life. Asking the friend to sign informed consent or notifying the unit manager for a court order would cause unnecessary delays, which are not advisable in this critical situation. Continuing life support until a guardian is found is not the most appropriate action when immediate surgical intervention is necessary.