Final answer:
The nurse's priority assessment in this situation will include monitoring the client's blood pressure closely after administering hydralazine (Apresoline) IV and checking for any potential side effects or adverse reactions to the medication.
Step-by-step explanation:
The nurse's priority assessment in this situation will include monitoring the client's blood pressure closely after administering hydralazine (Apresoline) IV. The nurse should check the client's blood pressure at regular intervals to assess if the medication is effectively reducing the blood pressure to a safer range. Additionally, the nurse should also monitor the client for any potential side effects or adverse reactions to the medication, such as dizziness, headache, or nausea. Blood pressure management is crucial in preventing complications like strokes or heart attacks in hypertensive patients.