The clinical diagnosis of dementia is based on
CT or MRI
Patient history and cognitive assessment
Brain biopsy
Electroencephalogram
The Correct Answer is B
Choice A reason: While CT or MRI scans can be helpful in identifying structural changes in the brain associated with dementia, such as atrophy or the presence of strokes, they are not sufficient on their own to diagnose dementia. These imaging techniques are often used to rule out other causes of cognitive impairment and to support a clinical diagnosis, but they do not provide a complete picture of a patient's cognitive function.
Choice B reason: Patient history and cognitive assessment are the primary methods for diagnosing dementia. The clinical diagnosis is based on a thorough evaluation of the patient's medical history, including any changes in cognitive function, behavior, and daily living activities. Cognitive assessments, such as the Mini-Mental State Examination (MMSE) or Montreal Cognitive Assessment (MoCA), are used to evaluate memory, attention, language, and other cognitive abilities. These assessments help to determine the presence and severity of cognitive impairment and differentiate dementia from other conditions that may cause similar symptoms.
Choice C reason: A brain biopsy is not a standard procedure for diagnosing dementia. It is an invasive procedure that involves taking a small sample of brain tissue for examination under a microscope. While it can provide definitive information about certain types of dementia, such as Creutzfeldt-Jakob disease, it is rarely used due to its invasiveness and associated risks.
Choice D reason: An electroencephalogram (EEG) is a test that measures electrical activity in the brain. It can be useful in diagnosing certain neurological conditions, such as epilepsy, but it is not typically used to diagnose dementia. EEGs do not provide detailed information about cognitive function or the structural changes in the brain associated with dementia.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["A","C","E","F","G"]
Explanation
Choice A reason: Weight loss is indicative of hypermetabolism caused by excessive thyroid hormone production. The increased metabolic rate leads to higher energy consumption, resulting in unintentional weight loss even if the patient maintains or increases their food intake.
Choice B reason: Begins to cry when he tells you he recently lost his wife. Emotional responses, such as crying, can be associated with personal loss and grief but are not directly linked to hypermetabolism or excess thyroid hormone. This statement reflects the patient's emotional state rather than a physiological manifestation of hyperthyroidism.
Choice C reason: Hyperactive bowel sounds are a common manifestation of hypermetabolism due to hyperthyroidism. The increased metabolic rate accelerates gastrointestinal motility, resulting in hyperactive bowel sounds and sometimes diarrhea.
Choice D reason: 1+ pitting edema noted in bilateral lower extremities is related to fluid retention and heart failure rather than hypermetabolism. Edema is not a typical manifestation of hyperthyroidism and is more indicative of cardiovascular or renal issues.
Choice E reason: A heart rate of 124 (tachycardia) is a common finding in patients with hyperthyroidism. Excess thyroid hormones increase the heart rate and cardiac output, leading to symptoms such as palpitations and tachycardia.
Choice F reason: Bounding radial pulses are indicative of increased cardiac output and stroke volume, which are common in hyperthyroidism due to the hypermetabolic state induced by excess thyroid hormones. This leads to strong and forceful pulses.
Choice G reason: Anxious and restless behavior is a manifestation of the increased adrenergic activity associated with hyperthyroidism. Excess thyroid hormones stimulate the nervous system, leading to symptoms such as anxiety, restlessness, and irritability.
Correct Answer is ["A","B","E","F","H"]
Explanation
Choice A reason: Jaundice is a common finding in cirrhosis due to impaired liver function, which leads to the accumulation of bilirubin in the blood. This causes the skin and the whites of the eyes to turn yellow.
Choice B reason: Spider angiomas are dilated blood vessels that appear on the skin and are often seen in patients with cirrhosis. They are caused by increased estrogen levels due to impaired liver function.
Choice C reason: Lethargy is a symptom of cirrhosis as the liver's ability to detoxify the blood is compromised, leading to fatigue and weakness.
Choice D reason: An apical pulse regular with S1, S2 is not specifically associated with cirrhosis. While it may be a normal finding, it does not indicate the presence of cirrhosis.
Choice E reason: Abdomen moderately distended is consistent with cirrhosis due to the accumulation of fluid in the abdominal cavity (ascites), which is a common complication of advanced liver disease.
Choice F reason: Dark amber urine is a sign of cirrhosis as the liver's ability to process bilirubin is impaired, leading to the excretion of conjugated bilirubin in the urine, which gives it a dark color.
Choice G reason: Peripheral pulses are palpable is not specifically associated with cirrhosis. While it may be a normal finding, it does not indicate the presence of cirrhosis.
Choice H reason: 3+ pitting edema is consistent with cirrhosis due to the retention of sodium and water, leading to swelling in the lower extremities.
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