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
Vision may be temporarily blurred after intraocular lens surgery, but significant vision reduction for 48 hours is not typical and should be reported to a healthcare provider.
Choice B rationale
Restricting lifting objects greater than 10 pounds is crucial to prevent increased intraocular pressure and potential complications after surgery.
Choice C rationale
Aspirin should be avoided as it can increase the risk of bleeding. Alternative pain relief methods should be used.
Choice D rationale
Warm compresses are not recommended as they can increase inflammation and discomfort. Cold compresses may be more appropriate.
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.