A nurse is teaching a client who is prescribed warfarin about the signs and symptoms of bleeding that should be reported to the provider. Which of the following statements by the client indicates an understanding of the teaching? (Select all that apply.)

A) This is correct because stopping the infusion and notifying the provider are the priority actions for a client who is experiencing signs and symptoms of anaphylaxis, which is a life-threatening allergic reaction to a medication. The nurse should also prepare to administer epinephrine as prescribed.

B) This is incorrect because administering diphenhydramine as prescribed is not the first action for a client who is experiencing anaphylaxis. Diphenhydramine is an antihistamine that can help relieve some symptoms of an allergic reaction, but it is not effective for reversing bronchoconstriction or hypotension that may occur in anaphylaxis.

C) This is incorrect because monitoring the client's vital signs and oxygen saturation is not the first action for a client who is experiencing anaphylaxis. Although these are important assessments, they are not as urgent as stopping the infusion and notifying the provider.

D) This is incorrect because slowing down the infusion rate and observing for improvement are not appropriate actions for a client who is experiencing anaphylaxis. Slowing down or continuing the infusion may worsen the client's condition and delay treatment.

A) This is incorrect because discarding the vial and obtaining a new one is not necessary actions for a vial of insulin that has a small amount of white precipitate at the bottom. This precipitate indicates that the insulin has crystallized due to cold storage or temperature changes, but it can be resuspended by gently rolling or rotating the vial.

B) This is incorrect because shaking the vial vigorously until the precipitate dissolves is not an appropriate action for a vial of insulin that has a small amount of white precipitate at the bottom. Shaking the vial may cause air bubbles or froth to form, which can affect the accuracy of the dose measurement and administration.

C) This is incorrect because warming the vial in a microwave oven for a few seconds is not a safe action for a vial of insulin that has a small amount of white precipitate at the bottom. Warming the vial in a microwave oven may cause uneven heating or damage to the insulin molecules, which can alter the potency and effectiveness of the medication.

D) This is correct because rolling the vial gently between the palms of both hands is the recommended action for a vial of insulin that has a small amount of white precipitate at the bottom. Rolling the vial gently helps to resuspend the insulin crystals and restore the uniform appearance of the solution.