A patient is diagnosed with Homonymous Hemianopsia. The nurse expects to find what defects in the visual field of this patient:
the patient is unable to see in half of the visual field (same visual field) in each eye
the patient can see from one eye but not through the other one.
the patient is unable to see in half of the visual field (opposite visual field) in each eye
No visual impairment
The Correct Answer is A
a) The patient is unable to see in half of the visual field (same visual field) in each eye:
Homonymous hemianopsia is a condition where there is a loss of vision in the same side of the visual field in both eyes. This occurs due to damage to the visual pathways after the optic chiasm, often from a stroke or brain injury, resulting in the loss of either the right or left visual field in both eyes.
b) The patient can see from one eye but not through the other one:
This description fits a condition called monocular blindness, which is typically caused by damage to the optic nerve before it reaches the optic chiasm. Homonymous hemianopsia involves both eyes and specific visual fields, not complete loss of vision in one eye.
c) The patient is unable to see in half of the visual field (opposite visual field) in each eye:
This option describes bitemporal hemianopsia, which results in loss of vision in the outer (temporal) fields of both eyes and is often due to damage at the optic chiasm. Homonymous hemianopsia involves the same side of the visual field in both eyes, not the opposite visual fields.
d) No visual impairment:
Homonymous hemianopsia is characterized by significant visual impairment, specifically the loss of half the visual field in both eyes on the same side. Therefore, it is incorrect to say there is no visual impairment with this condition.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
A) Facial edema: Myxedema is a severe form of hypothyroidism that is often characterized by the accumulation of mucopolysaccharides in the skin and other tissues, leading to facial and peripheral edema. This is a classic symptom of myxedema and is expected in clients with this condition.
B) Diarrhea: Diarrhea is more commonly associated with hyperthyroidism rather than hypothyroidism. Clients with myxedema typically experience constipation due to slowed gastrointestinal motility.
C) Tachycardia: Tachycardia is associated with hyperthyroidism. In contrast, myxedema is associated with bradycardia or a slow heart rate because of the overall slowing of the body's metabolic processes.
D) Heat intolerance: Heat intolerance is a symptom of hyperthyroidism. Clients with myxedema usually experience cold intolerance due to decreased metabolic activity and impaired thermoregulation.
Correct Answer is C
Explanation
A) Snellen chart:
The Snellen chart is used to assess distance vision, not near vision. It consists of letters or symbols arranged in rows, with the client typically asked to read from a specific distance to test visual acuity.
B) Penlight:
A penlight is primarily used to assess pupillary reactions and near vision tasks such as accommodation. It helps examine how the pupils respond to light and how well the eyes focus on near objects.
C) Magazine:
A magazine or similar reading material is commonly used to assess near vision. Clients are asked to read the text at a comfortable distance, evaluating their ability to focus on close-up objects and the clarity of their vision.
D) Ophthalmoscope:
An ophthalmoscope is used to examine the interior structures of the eye, such as the retina and optic nerve head. It is not used for assessing near vision but rather for diagnosing conditions affecting the eye's internal structures.
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