A nurse is preparing to administer insulin to a client who has type 1 diabetes mellitus. Which of the following actions by the nurse demonstrates proper technique for mixing regular and NPH insulin in the same syringe?

A) Incorrect. The nurse should inject air into the regular vial first, then into the NPH vial. This can prevent contamination of the regular insulin with NPH insulin and ensure accurate dosing.

B) Correct. The nurse should draw up regular insulin first, then NPH insulin. This can prevent contamination of the regular insulin with NPH insulin and ensure accurate dosing. Regular insulin is clear and NPH insulin is cloudy.

C) Correct. The nurse should roll the NPH vial between their palms before drawing up insulin. This can resuspend the insulin particles that may have settled at the bottom of the vial and ensure uniform concentration.

D) Correct. The nurse should wipe the rubber stoppers of both vials with alcohol swabs before inserting needles. This can reduce the risk of infection and contamination.

A) Correct. The nurse should advise the client to limit spinach in their diet as this food is high in vitamin K, which can antagonize the anticoagulant effect of warfarin and increase the risk of thrombosis.

B) Incorrect. The nurse should not advise the client to limit bananas in their diet as this food is high in potassium, which can help prevent hypokalemia that can occur with some anticoagulants such as heparin. Bananas do not affect the action of warfarin.

C) Incorrect. The nurse should not advise the client to limit cheese in their diet as this food is high in calcium, which can help prevent osteoporosis that can occur with long-term use of warfarin. Cheese does not affect the action of warfarin.

D) Incorrect. The nurse should not advise the client to limit eggs in their diet as this food is high in protein, which can help maintain muscle mass and wound healing that can be impaired by warfarin. Eggs do not affect the action of warfarin.