Correct Answer: B

Rationale: Pressing on the nasolacrimal duct, located near the inner corner of the eye, blocks the lacrimal punctum and prevents the medication from entering the systemic circulation. This technique helps to ensure the medication stays localized in the eye, enhancing its therapeutic effect while minimizing systemic side effects.

Correct Answer: C

Rationale: Regular insulin, also known as short-acting insulin, typically exhibits a peak effect around 1 to 5 hours following administration. This rapid onset and peak effect make it suitable for managing postprandial glucose levels. In contrast, Insulin glargine is a long-acting insulin with no pronounced peak effect, NPH insulin has an intermediate duration of action, and Insulin lispro is a rapid-acting insulin that peaks within 30 minutes to 2.5 hours after administration.

Correct Answer: B

Rationale: A 17-year-old can be immunized for influenza with the LAIV via nasal spray. A hypersensitivity to penicillin is not a contraindication for an influenza immunization. Nasal spray influenza vaccine is generally recommended for healthy individuals between 2 and 49 years old.

Correct Answer: B

Rationale: Pamidronate is given through IV infusion and can be irritating to veins. Therefore, the nurse should frequently assess the IV site for thrombophlebitis during the administration to promptly detect any potential complications related to the infusion.

Correct Answer: C

Rationale: Dopamine is a medication used in shock to increase cardiac output and improve renal perfusion. An increase in urine output indicates that the medication is effective as it shows improved renal perfusion and kidney function, which are essential for managing shock effectively.