DEMENTIA

DEMENTIA

Q. 1 Dermatitis, diarrhoea and dementia are seen in deficiency of :

 A Thiamine

 B

Riboflavin

 C

Niacin

 D

Methionine

Q. 1

Dermatitis, diarrhoea and dementia are seen in deficiency of :

 A

Thiamine

 B

Riboflavin

 C

Niacin

 D

Methionine

Ans. C

Explanation:

The early symptoms of pellagra include loss of appetite, generalized weakness and irritability, abdominal pain, and vomiting.
Bright red glossitis then ensues, followed by a characteristic skin rash that is pigmented and scaling, particularly in skin areas exposed to sunlight.
This rash is known as Casal’s necklace because it forms a ring around the neck; it is seen in advanced cases.
Vaginitis and esophagitis also may occur. Diarrhea (in part due to proctitis and in part due to malabsorption), depression, seizures, and dementia are also part of the pellagra syndrome—the four Ds: dermatitis, diarrhea, and dementia leading to death.
 
Ref:Russell R.M., Suter P.M. (2012). Chapter 74. Vitamin and Trace Mineral Deficiency and Excess. In D.L. Longo, A.S. Fauci, D.L. Kasper, S.L. Hauser, J.L. Jameson, J. Loscalzo (Eds), Harrison’s Principles of Internal Medicine, 18e.

 


Q. 2

Pseudodementia is seen in:

 A

Alcoholism

 B

Depression

 C

Schizophrenia

 D

Mania

Ans. B

Explanation:

Ans:B i.e. Depression 

  • Pseudodementia (Depression related cognitive dysfunctions) is found in depression.
  • They have past h/o depression.
  • Have more insight into their symptoms – i.e. themselves complaints of memory impairment, difficulty in sustaining attention & concentration; & reduced intellectual capacity.
  • In contrast, a patient of dementia does not c/o these disturbances

Q. 3 True about dementia is A/E

 A

Hallucination is not common

 B

Clouding of consciousness is common

 C

Nootropics have limited role

 D

All

Ans. B

Explanation:

Ans:B i.e. Clouding of consciousness is common

  • Clouding of consciousness is a characteristic feature delirium & is helpful in differentiating it from dementia.
  • The two most common causes of dementia are Alzheimer’s & multi-infarct; both of which are irreversible.

Q. 4 Characteristic feature of subcortical dementia is

 A

Memory loss

 B

Aphasia

 C

Dyslexia

 D

Tactile agnosia

Ans. A

Explanation:

Ans:A i.e. Memory loss

Aphasia, Agnosia, Dyslexia are characteristic features of cortical dementia. So we are only left with memory loss for subcortical dementia.


Q. 5 Subcortical dementia is seen in all except :

 A

Parkinsonism

 B

Alzheimer’s disease

 C

Wilsoms disease

 D

Huntingtons Chorea

Ans. B

Explanation:

B i.e. Alzheimer’s disease


Q. 6

Dementia is seen in all except:

 A

Schizophrenia

 B

Alzheimer’s disease

 C

Huntington’s chorea

 D

Pick’s ds

Ans. A

Explanation:

A i.e. Schizophrenia


Q. 7

Most common cause dementia in adult:

 A

Alzheimer’s

 B

Multiinfarct

 C

Pick’ disease

 D

Metabolic cause

Ans. A

Explanation:

Ans: A -Alzheimer’s

Alzheimer’s disease is the most common cause of progressive dementia in older adults, but there are several causes of dementia. Depending on the cause, some dementia symptoms may be reversible.


Q. 8

One of the following is an irreversible cause of dementia :

 A

Toxic dementia

 B

Alzheimer’s ds.

 C

Multi-infarct dementia

 D

Pick’s disease

Ans. D

Explanation:

Ans:D-Pick’s Disease

Pick’s disease is a rare condition that causes progressive and irreversible dementia.

This disease is one of many types of dementia known as frontotemporal dementia (FTD). Frontotemporal dementia is the result of a brain condition known as frontotemporal lobar degeneration (FTLD). 


Q. 9

A reversible cause of dementia is

 A

Multi-infarct

 B

Senile Dementia

 C

Post Encephalitis

 D

Huntington’s chorea

Ans. C

Explanation:

Ans:C -Post Encephalitis

Causes of potentially reversible cognitive impairment or dementia


Neurosurgical conditions

Neuroinfections and inflammations

Metabolic conditions

Others

  • Subdural hematoma
  • Meningitis (tubercular, fungal, malignant)
  • Hypo and hyper thyroidism,
  • Depression
   
  • Hashimotos encephalits
 
  • Normal pressure hydrocephalous
  • Encephalitis (limbic, HIV, herpes)
  • Hypo and hyper parathyroididsm
  • Epilepsy
  • Intracranial tumors
  • Cerebral vasculitis
  • Pituitary insufficiency
  • Drugs and toxins
  • Intracranial empyema or abscess
  • Neurosyphilis
  • Hypercalcemia
  • Alcohol abuse
 
  • Lyme’s disease
  • Cushing’s disease
  • Sleep apnea
 
  • Whipple’s disease
  • Addison’s disease
  • Limbic encephalitis (neoplastic/ autoimmune)
 
  • Sarcoidosis
  • Hypoglycemia
 
   
  • Vitamin deficiencies (B1, B6, B12, and folate)
 
   
  • Chronic liver failure
 
   
  • Chronic respiratory failure

Q. 10 Vascular dementia is characterized by

 A Disorientation

 B

Memory deficiet

 C

Emotional liability

 D

All

Ans. D

Explanation:

Ans. D. All

  • These all are features of dementia
  • Dementia is characterized by multiple cognitive defects that include impairment in memory, without impairment in consciousnessQ.
  • The cognitive functions that can be affected in dementia include general intelligence, learning & memory, language, problem solving, orientation, perception, attention & concentration, judgement & social abilities (key words : think about a very old man who is unable to learn new things, concentrate, judge & solve problems with poor personal care, general intelligence, social abilities & communication skills.)
  • Vascular dementia characteristically presents with – sudden onset in early age, stepwise & patchy progression with focal neurological signs & symptomsQ & greater preservation of personality.

Q. 11 Dementia of Alzheimer’s type is not associated with one of the following :

 A

Depressive symptoms

 B

Delusions

 C

Apraxia and aphasia

 D

Cerebral infarcts

Ans. D

Explanation:

Ans:D i.e.Cerebral infarcts

  • Dementia of the Alzheimer type is a progressive, fatal neurodegenerative condition characterized by deterioration in cognition and memory, progressive impairment in the ability to carry out activities of daily living, and a number of neuropsychiatric symptoms.
  • Symptoms appear gradually and the course is steadily progressive.
  • Neuropathologically, limbic and posterior association cortices of the cerebrum are preferentially affected. Abundant neuritic plaque, neurofibrillary tangles, and neuronal loss are detected in these areas. 

Q. 12 The term “Dementia precox” was coined by

 A

Freud

 B

Bleuler

 C

Kraepelin

 D

Schneider

Ans. C

Explanation:

C i.e., Kraepelin 

  1. Benedict Morel used term demence precoce (in french) for deteriorated patients whose illness began in adolescence.
  2. Emil Kraeplin translated it into dementia. PrecoxQ i.e. dementia = deteriorated cognitive process & precox = early onset
  3. Eugen Bleuler coined term schizophreniaQ
  4. Kahlbaum described catatoniaQ, Hacker decribed hebephrenia

Q. 13 Presenile dementia is defined as that which occur below the age of ……. years :

 A

50

 B

55

 C

60

 D

65

Ans. C

Explanation:

C i.e. 60


Q. 14

True about dementia is: 

Karnataka 07

 A

Alzheimer’s disease is due to multiple small strokes in the cerebral cortex

 B

Dementia is the loss of distant memory

 C

Dementia due to atherosclerosis does not progress like Alzheimer’s

 D

Alzheimer’s disease is associated with an increase in ACh release in the cerebral cortex

Ans. B

Explanation:

Ans. Dementia is the loss of distant memory


Q. 15

All are reversible causes of dementia except

 A

Hypothyroidism

 B

Hydrocephalus

 C

Meningoencephalitis

 D

Alzheimer’s disease

Ans. D

Explanation:

Ans.  ‘D’ i.e., Alzheimer’s disease

Reversible causes of dementia

* Surgically treatable:- Normal pressure hydrocephalus, brain tumors (frontal lobe tumor), meningioma, subdural hematoma due to head injury, hydrocephalus.

* Medically treatable:- Depression, hypothyroidism, alcohol abuse, vitamin B 12/folate/Niacin deficiency, any metabolic or endocrine disturbance, neurosyphilis, Hashimoto’s encephalopathy, Wilson’s disease, celiac disease, Whipple’s disease, chronic meningoencephalitis, drugs and toxin (toxic dementia).

Irreversible causes of dementia:

* Alzheimer’s disease, vascular (multi-infarct) dementia, Parkinsonism, Huntington’s chorea, Lewy body dementia, Pick’s disease.


Q. 16 All are true regarding Fronto-temporal dementia except: 

 A Stereotypic behavior

 B

Insight present

 C

Age less than 65 years 

 D

Affective symptoms

Ans. B

Explanation:

Ans. b. Insight present (Ref Kaplan and Sadocks 9/e p1194-1198; Harrison 19/e p2602, 18/e p3309-3311) Fronto-Temporal Dementia:

  • Insight is absent in Fronto-temporal dementia.
  • FTD often begins in the 5′hto 7th decades.
  • Patients with FTD often show an absence of insight into their condition.
  • Common behavioral features include apathy, disinhibition, weight gain, food fetishes, compulsions, and emotional distance or loss of empathy.
Fronto-Temporal Dementia
FTD often begins in the 5′ to 7′ decades’)

More common in menu

Unlike in Alzheimer’s disease (AD), behavioral symptoms predominate in the early stages of FTD°

Family history of dementia is common° 

MC autosomal dominantly inherited mutations causing FTD involve the MAPT or GRN genes, both on chromosome 17.
Clinical features:

Early symptoms are divided among behavioral, language, and sometimes motor abnormalities, reflecting degeneration of the anterior insular, frontal, and temporal regions, basal ganglia, and motor neurons.

Cognitive testing typically reveals spared memory but impaired planning, judgment, or language°.
Poor business decisions and difficulty organizing work tasks are common, and speech and language deficits often emerge.

Patients with FTD often show an absence of insight into their condition.

Common behavioral features include apathy, disinhibition, weight gain, food fetishes, compulsions, and emotional distance or loss of empathy.

Diagnosis:

Distinguishing anatomic hallmark of FTD: Focal atrophy of frontal, insular, and/or temporal cortex, which can be visualized with neuroimaging studies (MRI)° 

Microscopic findings seen across all patients with FTD include gliosis, microvacuolation, and neuronal loss°

 


Q. 17

Incorrect about dementia pugilistica 

 A

Seen in boxers

 B

Difficulty in gait

 C

Decreased cognition

 D

Nystagmus

Ans. D

Explanation:

Answer- D. Nystagmus

Dementia Pugilistica (DP), otherwise known as’punch-drunk syndrome’or’boxer’s dementia,” is a form of dementia that originates with repeated concussions or other traumatic blows to the head.

Symptoms of Dementia Pugilistica

  • Progressively declining cognitive ability
  • Physical tremors
  • Difficulty in speech
  • Pathological feelings of jealousy or paranoia
  • Short-term memory loss
  • Loss of physical coordination
  • Changes in gait

Q. 18 Which of the following dementia is associated with visual hallucinations?

 A

Lewy body dementia

 B

AIDS related Dementia

 C

Huntington’s disease

 D

Mixed dementia

Ans. A

Explanation:

Ans. A.  Lewy body dementia –

  • Lewy body dementia, also known as dementia withLewy bodies, is the second most common type of progressive dementia after Alzheimer’s disease dementia.
  • Protein deposits, called Lewy bodies, develop in nerve cells in the brain regions involved in thinking, memory and movement (motor control).


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