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.
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Related Questions
Correct Answer is C
Explanation
A history of gastric ulcers is a contraindication to the use of aspirin. Aspirin is a nonsteroidal anti-inflammatory drug (NSAID) that can irritate the stomach lining and increase the risk of gastrointestinal bleeding and ulcers. Therefore, in a client with a history of gastric ulcers, aspirin should be avoided to prevent exacerbation of the condition and potential complications.
A, B, D - Migraine headaches, glaucoma and amenorrhea are not contraindications to aspirin use
Correct Answer is B
Explanation
Allopurinol is a uric lowering agent that reduces the conversion on hypoxanthine to uric acid lowering its levels in blood. This prevents formation of uric acid crystals which are deposited in joints and tissues in gouty arthritis.
A. Spironolactone is a potassium sparing diuretic used in management of ascites, hypertension and heart failure
C. Zolpidem is a sedative-hypnotic agent used in management of sleep wake disorders
D. Alprazolam is a benzodiazepine used in management of anxiety disorders
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