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
the first bead of ointment may be contaminated with bacteria from the tip of the tube or the surrounding skin. Discarding this initial bead ensures that the subsequent application is sterile and reduces the risk of introducing infection into the eye.
A. Warming the ointment by placing the tube in hot tap water alters the consistency of the ointment and can potentially cause burns to the child's delicate eye tissue.
C. Instructing the child to squeeze his eyes shut following application is not necessary. The eyes should be closed gently
D. Cleansing the eye should be done from the inner corner moving outward
Correct Answer is D
Explanation
NPH Insulin is an intermediate acting insulin with a peak at 6-14hrs
A. Freezing unopened insulin vials is not recommended, as freezing can denature the insulin and affect its potency. Insulin should be stored in the refrigerator but should not be frozen
B. The insulin should be rotated of rolled between palms to allow for proper mixing before drawing.
Shaking vigorously promotes bubble formation
C. NPH insulin has a normal turbid appearance at neutral pH
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