Correct Answer: D

Rationale: The correct answer is D. Washing hands before handling the needle and syringe is a critical step in infection control and adherence to standard precautions. Clean hands help prevent the transfer of microorganisms and reduce the risk of infection. Choices A, B, and C do not directly relate to standard precautions. Removing the needle after discarding used syringes (Choice A) can increase the risk of needlestick injuries. Wearing gloves while disposing of the needle and syringe (Choice B) is important for personal protection but does not specifically address standard precautions. Wearing a face mask during medication administration (Choice C) is not directly related to handling syringes and needles, which are more pertinent to standard precautions.

Correct Answer: C

Rationale: The correct answer is to include a diet high in fluids to help minimize the side effects of vincristine. High fluid intake is important in managing potential side effects such as constipation, which is a common issue associated with vincristine therapy. Options A, B, and D are incorrect. A diet low in fat or high in iron is not specifically indicated for managing vincristine side effects. Additionally, a diet low in residue is not directly related to addressing vincristine side effects.

Correct Answer: A

Rationale: The nurse should offer support without pressuring the client. Stating, "I am available to talk if you should change your mind," acknowledges the client's decision while leaving the door open for future discussions. Choice B is incorrect as it assumes the client's decision is final without offering further support. Choice C directs the client back to the provider without addressing the nurse's availability. Choice D commits to a future discussion without considering the client's current preference.

Correct Answer: B

Rationale: In a fire emergency, the nurse's priority is to activate the fire alarm. This action alerts others to the emergency, initiates the evacuation process, and ensures everyone's safety. Extinguishing the fire can be dangerous and should be left to trained personnel. Moving clients who are nearby might delay the activation of the alarm and can put the nurse and clients at risk. Closing all open doors on the unit is important to contain the fire but should not take precedence over alerting others through the fire alarm system.

Correct Answer: A

Rationale: An ankle-foot orthotic is the correct choice to prevent a plantar flexion contracture in a paralyzed limb. An ankle-foot orthotic helps maintain proper alignment of the foot and ankle, preventing the foot from being permanently fixed in a pointed-down position. Continuous passive motion machines are typically used to promote joint movement after surgery and would not address the prevention of contractures in this case. Abduction splints are used to keep the legs apart and would not address the specific issue described. Sequential compression devices are used to prevent deep vein thrombosis by promoting circulation in the lower extremities and are not indicated for preventing plantar flexion contractures.