A patient presents to the emergency department with a complaint of sudden, severe pain to the left eye, nausea, and seeing halos around lights. The nurse suspects primary angle-closure glaucoma. The nurse anticipates that in order to relieve intraocular pressure, the patient should be prepared for which of the following procedures?
Phacoemulsification
Extracapsular cataract extraction
Cochlear implant
Surgical iridectomy
The Correct Answer is D
A. Phacoemulsification is a procedure used to remove cataracts from the eye. It involves using ultrasound waves to break up the cloudy lens (cataract) into small fragments, which are then suctioned out. While this procedure is relevant for cataract treatment, it does not address the acute management of angle-closure glaucoma.
B. Extracapsular cataract extraction is a surgical procedure to remove a cataract from the eye by making an incision and extracting the lens in one piece or in large segments. Like phacoemulsification, this procedure is focused on cataract removal and does not directly treat the underlying issue of acute angle-closure glaucoma.
C. A cochlear implant is a device used to provide a sense of sound to individuals with severe hearing loss or deafness. This procedure is unrelated to the treatment of eye conditions or intraocular pressure and therefore is not appropriate for managing primary angle-closure glaucoma.
D. Surgical iridectomy is a procedure specifically aimed at treating angle-closure glaucoma. It involves creating a small hole (iridectomy) in the peripheral iris to allow aqueous humor to flow from the posterior chamber of the eye to the anterior chamber, bypassing the obstructed drainage angle.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
A. Myasthenia gravis is an autoimmune disorder characterized by weakness and rapid fatigue of voluntary muscles due to impaired communication between nerves and muscles. It is not directly related to HSV infection.
B. Multiple sclerosis (MS) is a chronic autoimmune disorder that affects the central nervous system, leading to demyelination of nerve fibers. While the exact cause of MS is not completely understood, it is thought to involve a combination of genetic and environmental factors. HSV is not directly associated with the development of MS.
C. Guillain-Barre syndrome (GBS) is an acute, autoimmune condition that affects the peripheral nervous system, leading to progressive muscle weakness and paralysis. GBS is often preceded by an infection, and while it is most commonly associated with infections like Campylobacter jejuni, other infections, including HSV, have also been implicated as potential triggers for GBS.
D. Bell's palsy is a condition characterized by sudden, unilateral facial paralysis or weakness due to inflammation of the facial nerve (cranial nerve VII). HSV has been identified as a potential cause of Bell's palsy, as the virus can lead to inflammation of the facial nerve.
Correct Answer is C
Explanation
A. Edrophonium is used to diagnose myasthenia gravis, a neuromuscular disorder that causes muscle weakness. It is not used to treat the symptoms described in the question.
B. Prednisone is a corticosteroid used to treat various conditions, including autoimmune diseases and allergies. It is not used to treat Parkinson's disease, which is the most likely diagnosis based on the symptoms described.
C. This medication is the gold standard for treating Parkinson's disease, a neurodegenerative disorder that causes tremors, rigidity, bradykinesia (slowed movements), and postural instability. Carbidopa- levodopa helps to increase dopamine levels in the brain, which can improve motor function and reduce symptoms.
D. Riluzole is used to treat amyotrophic lateral sclerosis (ALS), a neurodegenerative disease that affects motor neurons. It is not used to treat Parkinson's disease.
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