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) Liver Disease:
Pitting edema is commonly seen in liver disease, especially in conditions like cirrhosis. Liver disease can lead to hypoalbuminemia, where low levels of albumin in the blood cause fluid to leak into the interstitial spaces, resulting in edema. Additionally, liver disease often leads to portal hypertension, which can also contribute to the development of edema.
(b) Diabetes mellitus:
While diabetes can cause complications such as diabetic nephropathy, which may lead to fluid retention, pitting edema is not a primary symptom directly associated with diabetes mellitus. Diabetic patients may develop edema due to kidney issues, but it is not as directly associated as with liver disease.
(c) End Stage Renal Disease:
End-stage renal disease (ESRD) can indeed cause significant fluid retention and edema, including pitting edema. The kidneys' inability to excrete excess fluid leads to its accumulation in tissues. However, the question seems to point towards liver disease, which directly leads to conditions causing pitting edema.
(d) Colon Cancer:
Colon cancer is not typically associated with pitting edema. While advanced cancer can lead to various complications, including fluid imbalances, it is not a primary cause of pitting edema. Edema related to cancer is often more localized and associated with tumor sites or treatment areas.
Correct Answer is A
Explanation
(a) "Your metabolism is slowing down.":
Hypothyroidism leads to a decrease in the production of thyroid hormones, which are critical in regulating metabolism. With lower levels of these hormones, the body's metabolic rate decreases, resulting in reduced calorie burning and subsequent weight gain. This explanation directly addresses the underlying cause of weight gain in hypothyroidism.
(b) "You should be exercising for longer periods of time.":
While exercise is beneficial for overall health and can help manage weight, it does not directly address the reason for weight gain in hypothyroidism. The primary issue is the slowed metabolism due to thyroid hormone deficiency, not a lack of exercise.
(c) "You could be making healthier food choices.":
Although diet plays a role in weight management, this response does not explain the root cause of weight gain in hypothyroidism. The condition itself slows metabolism, leading to weight gain even if dietary habits remain unchanged.
(d) "You are retaining fluid.":
Fluid retention can occur in hypothyroidism but is not the primary reason for weight gain in this condition. The main cause is a decreased metabolic rate, which leads to the accumulation of body fat. Fluid retention might contribute to some weight gain, but it is not the best explanation in this context.
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