A nurse is planning care for a client who has a detached retina and is preoperative for a surgical repair. The nurse should prepare to administer which of the following medications?
Timolol
Pilocarpine
Latanoprost
Phenylephrine
The Correct Answer is D
Phenylephrine is an alpha-adrenergic agent. It binds onto adrenergic receptors producing a sympathetic effect that dilates the pupil. Dilation of the pupils allows for visualization of inner structures of the eye and easier access during retinal surgery.
A. Timolol is a beta-blocker eye drop used to reduce intraocular pressure in conditions like glaucoma.
B. Pilocarpine is a miotic agent (constricts the pupil) used to treat conditions like glaucoma.
C. Latanoprost is a prostaglandin analog used to lower intraocular pressure in glaucoma.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
Prolonged oral corticosteroid use reduces the body’s secretion of endogenous steroids- cortisol as the body relies on the oral steroids. If abruptly stopped the body experiences severe adrenocortical insufficiency with symptoms such as fatigue, weakness, weight loss, nausea, vomiting, and low blood pressure. Tapering the dose allows the body to readjust and produce cortisol.
A, C, D- Are not effects of abrupt discontinuation of steroids
Correct Answer is C
Explanation
Mydriatic eye drops are used in ophthalmology to dilate the pupil for visualization of the retina and the vitreous humor. Absorption into the system an lead to systemic anticholinergic effect such a s constipation due to reduce gastrointestinal motility.
A. Bradycardia is a cholinergic effect
B and D are not typical anticholinergic effects
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