The client presented to the emergency department (ED) with a rattlesnake bite on the left foot 2 hours ago. Which intervention should the nurse implement during the administration of the antivenin? 1....

The client presented to the emergency department (ED) with a rattlesnake bite on the left foot 2 hours ago. Which intervention should the nurse implement during the administration of the antivenin?

1. Take the client’s vital signs every 15 minutes.

2. Administer diphenhydramine (Benadryl), an H1 antagonist.

3. Monitor the circumference of the left leg every 4 hours.

4. Administer cimetidine (Tagamet), an H2 histamine blocker.