What is the purpose of administering diphenhydramine before a blood transfusion?
To expand the blood volume.
To enhance clotting factors.
To avoid fever and chills.
To prevent urticaria.
The Correct Answer is D
Choice A rationale
Diphenhydramine does not expand blood volume. It is an antihistamine used to prevent allergic reactions.
Choice B rationale
Diphenhydramine does not enhance clotting factors. It is used to manage allergic reactions.
Choice C rationale
While diphenhydramine can help manage fever and chills, its primary purpose before a blood transfusion is to prevent allergic reactions.
Choice D rationale
Administering diphenhydramine before a blood transfusion helps prevent urticaria and other allergic reactions by blocking histamine release. .
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Correct Answer is B
Explanation
Choice A rationale
Timolol is a beta-blocker used to reduce intraocular pressure in patients with open-angle glaucoma. It is not intended for short-term use or gradual tapering off. The medication must be used consistently to maintain its therapeutic effect.
Choice B rationale
Timolol should be applied on a regular schedule for the rest of the client’s life to effectively manage intraocular pressure and prevent further damage to the optic nerve.
Choice C rationale
Timolol does not cure glaucoma or normalize intraocular pressure permanently. Continuous use is necessary to control the condition.
Choice D rationale
Timolol is not used as a pain reliever. It is specifically prescribed to manage intraocular pressure in glaucoma patients.
Correct Answer is B
Explanation
Choice A rationale
Rephrasing statements the client does not hear is helpful but not the priority action. The priority is to determine if the client uses hearing aids to ensure they can hear instructions and communication effectively.
Choice B rationale
Determining if the client uses hearing aids is the priority action. Ensuring the client has and uses their hearing aids can significantly improve communication and care.
Choice C rationale
Speaking using the usual tone of voice and directly in front of the client is important but secondary to ensuring the client has their hearing aids.
Choice D rationale
Using hand gestures to communicate can be helpful but is not the priority action. The primary focus should be on ensuring the client has their hearing aids for optimal hearing.