Final answer:
The nurse should monitor for hypoglycemia option (b) if a patient takes 25 units of NPH insulin at 1600.
Step-by-step explanation:
The nurse should monitor for hypoglycemia option (b) if a patient takes 25 units of NPH insulin at 1600. NPH insulin is a type of insulin that helps lower blood sugar levels. Taking this amount of insulin can potentially lead to hypoglycemia, which is when blood sugar levels become dangerously low. Symptoms of hypoglycemia include sweating, shakiness, dizziness, confusion, and hunger. The nurse should closely watch the patient for these symptoms and take appropriate action if necessary, such as providing a snack or stopping further insulin administration.