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 A
Explanation
Trough levels should be taken immediately to ensure that the drug levels are at the lowest. Peak levels are taken 30-45mins after the infusion as the drug levels rises rapidly reaching a peak level
B, D- The timings of measurement are closely related to the administration of the drug
C- Peak levels are taken after administration and trough levels after an d not vice versa
Correct Answer is D
Explanation
Sucralfate is a medication used to treat gastric and duodenal ulcers by forming a protective coating over the ulcer site to prevent acid exposure. Taking it 1 hour before meals and bedtime ensures formation of a coat prior to production of acid during digestion or lying down.
A. Taking sucralfate "as needed" may lead to overdose as well as reduced effectiveness
B. There's no need to reduce fluid intake with sucralfate.
C. Sucralfate should not be taken with antacids, as they can interfere with its effectiveness by altering its pH-dependent mechanism of action. It's generally recommended to take sucralfate at least 30 minutes before or after taking antacids.
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