A nurse is caring for a client who reports a decrease in central vision. The nurse should identify that this is a manifestation of which of the following visual impairments?
Macular degeneration
Glaucoma
Diabetic retinopathy
Cataract
The Correct Answer is A
Choice A Reason: This is correct because macular degeneration is a condition that affects the macula, which is the central part of the retina that is responsible for sharp and detailed vision. Macular degeneration can cause blurred or distorted central vision, difficulty reading or recognizing faces, or dark spots in the visual field.
Choice B Reason: This is incorrect because glaucoma is a condition that affects the optic nerve, which is the nerve that connects the eye to the brain and carries visual signals. Glaucoma can cause increased pressure inside the eye, damage to the optic nerve, and loss of peripheral vision.
Choice C Reason: This is incorrect because diabetic retinopathy is a condition that affects the blood vessels in the retina, which is the layer of tissue at the back of the eye that converts light into nerve impulses. Diabetic retinopathy can cause bleeding, swelling, or leakage of fluid in the retina, and loss of vision in any part of the visual field.
Choice D Reason: This is incorrect because cataract is a condition that affects the lens, which is the transparent structure behind the pupil that focuses light onto the retina. Cataract can cause clouding or opacity of the lens, and reduced vision in all parts of the visual field.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
Choice A Reason: Measuring the abdominal girth is not related to asterixis, which is a tremor of the hand when the wrist is extended. It may indicate ascites, which is a complication of cirrhosis, but not asterixis.
Choice B Reason: This is the correct choice. Asterixis is a flapping tremor of the hand when the wrist is extended, sometimes said to resemble a bird flapping its wings. It is caused by abnormal function of the diencephalic motor centers that regulate the muscles involved in maintaining posture. It is a sign of hepatic encephalopathy, which is a neuropsychiatric disorder that occurs in patients with liver disease.
Choice C Reason: Having the client flex and extend their foot is not related to asterixis, which affects the hand and wrist. It may test for ankle clonus, which is a rhythmic contraction of the calf muscles when the foot is dorsiflexed. It indicates an upper motor neuron lesion, but not hepatic encephalopathy.
Choice D Reason: Asking the client to walk heel to toe is not related to asterixis, which affects the hand and wrist. It may test for balance and coordination, which can be impaired in patients with hepatic encephalopathy, but it is not a specific sign of asterixis.
Correct Answer is D
Explanation
Choice A Reason: Decreased thickness of tympanic membranes is not a physiological change to hearing in older adult clients. The tympanic membranes are thin and flexible structures that vibrate in response to sound waves. The thickness of the tympanic membranes does not change significantly with age.
Choice B Reason: Decreased tinnitus is not a physiological change to hearing in older adult clients. Tinnitus is a ringing or buzzing sound in the ears that may be caused by various factors, such as noise exposure, ear infections, medications, or aging. Tinnitus may increase or decrease with age, depending on the underlying cause.
Choice C Reason: Decreased ear wax is not a physiological change to hearing in older adult clients. Ear wax is a natural substance that lubricates and protects the ear canal from dust, bacteria, and insects. Ear wax production may vary with age, but it does not affect hearing unless it accumulates and blocks the ear canal.
Choice D Reason: Decreased ability to hear high-frequency sounds is a physiological change to hearing in older adult clients. This is also known as presbycusis, which is a gradual loss of hearing that occurs as part of aging. Presbycusis affects the ability to hear high-pitched sounds, such as consonants, birdsong, or alarms.
Whether you are a student looking to ace your exams or a practicing nurse seeking to enhance your expertise , our nursing education contents will empower you with the confidence and competence to make a difference in the lives of patients and become a respected leader in the healthcare field.
Visit Naxlex, invest in your future and unlock endless possibilities with our unparalleled nursing education contents today
Report Wrong Answer on the Current Question
Do you disagree with the answer? If yes, what is your expected answer? Explain.
Kindly be descriptive with the issue you are facing.