The nurse's assistant is having difficulty carrying out a delegated task. The first step the nurse should take is to:

B. This response acknowledges the urgency of the situation and seeks clarification on the appropriate administration technique. It demonstrates readiness to follow through with the medical resident's directive while ensuring safe and effective administration.

A. This response reflects hesitation and a concern about administering a medication that the nurse did not prepare or is unfamiliar with. In a critical situation like a "code blue," timely administration of medications as directed by the medical team is crucial for patient outcomes.

C. Checking IV patency is important to ensure the medication can be administered properly. However, in a "code blue" situation where time is critical, this step might unnecessarily delay administration of the medication.

D. This response indicates willingness to follow the directive given by the medical resident. It also emphasizes the importance of documenting and obtaining proper orders after the immediate crisis has been addressed.

A. Isometric exercises typically involve pushing or pulling against a stationary object or surface. This action creates muscle tension without joint movement.

B. Using a trapeze involves lifting the body and is more related to mobility assistance rather than isometric exercise. It typically involves movement and is not considered an isometric exercise.

C. Brisk walking is a cardiovascular exercise that involves movement and does not focus on muscle contraction without movement. It improves cardiovascular fitness and endurance rather than strength through isometric contraction.

D. Active range of motion exercises involve moving joints through their full range of motion using muscle strength. This is different from isometric exercises, which involve static muscle contractions without joint movement.