A new nurse is teaching a nursing student in the mental health unit. The nurse explains that an example of a treatable (reversible) form of Neurocognitive disorder is caused by which of the following? (Select all that apply)
Medication side effects
Hypothyroidism
Vitamin B12 deficiency
Multiple small brain infarcts
Correct Answer : A,B,C
A. Medication side effects: Certain medications can cause cognitive impairment that mimics dementia, but this condition is often reversible if the medication is adjusted or discontinued.
B. Hypothyroidism: Hypothyroidism can lead to cognitive impairment that may be reversible with appropriate thyroid hormone replacement therapy.
C. Vitamin B12 deficiency: Deficiency in vitamin B12 can cause cognitive deficits that are often reversible with supplementation.
D. Multiple small brain infarcts: This condition, often associated with vascular dementia, usually leads to permanent brain damage and is typically not reversible.
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Related Questions
Correct Answer is A
Explanation
A. The pharmacological action of Ritalin causes a decrease in appetite. Methylphenidate (Ritalin) is a stimulant medication commonly prescribed for ADHD. One of its well-documented side effects is appetite suppression, which can lead to weight loss. This is the most accurate and direct explanation for the weight loss observed in the adolescent client.
B. Side effects of Ritalin cause nausea; therefore, caloric intake is decreased. While nausea can occur with methylphenidate, it is not the primary reason for weight loss. The main mechanism is appetite suppression rather than a direct reduction in caloric intake due to nausea. This response is less accurate than option A.
C. Increased ability to concentrate allows the client to focus on activities rather than food: While methylphenidate can improve concentration, this explanation does not directly address the physiological cause of weight loss. It is the decrease in appetite due to the drug's effects on neurotransmitters that leads to weight loss, not the increased focus on activities .
D. Hyperactivity seen in ADHD causes increased caloric expenditure: Hyperactivity itself can lead to higher caloric expenditure, but this is not directly related to the weight loss caused by methylphenidate. The primary reason for the weight loss in this case is the appetite suppression due to the medication, not increased activity .
Correct Answer is C
Explanation
A. "Donepezil (Aricept) encourages production of acetylcholine, a chemical in the brain necessary for memory processes. It delays the progression of the disease.": This statement is partially correct. Donepezil inhibits the breakdown of acetylcholine rather than encouraging its production. However, it correctly states that it delays the progression of Alzheimer's disease.
B. "Donepezil (Aricept) delays the destruction of dopamine, a chemical in the brain necessary for memory processes. Although most effective in the early stages, it serves to delay, but not stop, the progression of the disease.": This is incorrect because Alzheimer's disease primarily involves acetylcholine, not dopamine.
C. "Donepezil (Aricept) delays the destruction of acetylcholine, a chemical in the brain necessary for memory processes. Although most effective in the early stages, it serves to delay, but not stop, the progression of the disease.": This is the correct statement. Donepezil is a cholinesterase inhibitor that helps maintain acetylcholine levels in the brain, which is important for memory and cognitive function. It does not cure Alzheimer's disease but can slow its progression.
D. "Donepezil (Aricept) encourages production of dopamine, a chemical in the brain necessary for memory processes. It delays the progression of the disease.": This is incorrect because donepezil does not affect dopamine levels significantly in the context of Alzheimer's disease.
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