The nurse should retake the blood pressure of the patient at the other arm, ideally after a few minutes of rest period. This is to confirm that the blood pressure is indeed elevated from the baseline of 160/100 mmHg. Next, the nurse should also take the blood pressure of the client at both arms while standing. Normally, blood pressure will decrease upon standing and the nurse should note whether or not there are any changes in the baseline blood pressure after doing this.