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dharma

mixed isqs...

18 posts in this topic

1. metabolic disorders often cause increased alpha waves on EEG

2. in severe closed head injury CSF rhinorrhea occurs in more than 10% of cases

3. the anterior thalamus is affected in huntington's disease

4. lesch nyham syndrome can be successfully treated by diet

5. in Alzheimers disease there is decreased latency in the evoled responses in EEG

;)

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1. metabolic disorders often cause increased alpha waves on EEG

False

In general, the EEG in metabolic encephalopathy is abnormal; background slowing is the most common pattern found (less than 9 Hz). Other patterns can also be useful in identifying or corroborating the cause of the encephalopathy. Slow activity that is prominent frontally, with deep triphasic waves (in the 2- to 4-Hz range), is characteristic of hepatic encephalopathy but can also be seen in renal failure. Spreading of the slow activity toward the occipital leads is a sign of deepening coma in this setting. Bursts of high-voltage activity amidst normal background frequencies are also a sign of diffuse metabolic disturbance

Irwin & Rippe's Intensive Care Medicine

normal waking alpha waves (8 to 13 Hz),

high frequency beta waves (greater than 13 Hz),

theta waves (4.0 to 7.5 Hz)

delta slowing (3.5 Hz or less)

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5. in Alzheimers disease there is decreased latency in the evoled responses(evoked potentials?) in EEG

False?

evoked potentials

this invasive technique is justified only under exceptional circumstances. From today's practical point of view, scalp EEG has several uses:

Investigation of epilepsy to confirm the diagnosis and clarify the type of epilepsy

Differentiation of delirium from acute nonorganic psychosis

Recognition of Creutzfeldt-Jakob disease

Distinction of frontotemporal dementia

Kaplan & Sadock's Comprehensive Textbook of Psychiatry

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2. in severe closed head injury CSF rhinorrhea occurs in more than 10% of cases

FALSE 5% according to Manchester

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4. lesch nyham syndrome can be successfully treated by diet

False(read some where in the forum)

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Few more:

1.Generalised anxiety disorder is called 'nervous shock' in law.

2.Anxiety disorders in elderly almost always have onset in earlier life

3.Stimulus preparedness explains phobia

4.Sleep walking is seen in depression

5.Reduced fertility is seen in late onset paraphrenia.

6.Emotional blunting is characteristic of PTSD.

7.The differences in scores between BDI and HAM-D are due to the way they are conducted

8.Peripheral CCK release reduces satiety

9.The effect of cortisol is more than that of DHEA in adolescent depression?

10.Bulimia is associated with increased mortality

11.In treatment of anorexic patients with severe weight loss, initial weight gain is associated by cognitive improvement

12.Anorexia can be prevented by education in schools, activities and peer focus group discussions ?

13.T4 levels are raised in anorexia nervosa ?

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:'( :'( annoying just lost my previous answers... will write again

2.Anxiety disorders in elderly almost always have onset in earlier life

TRUE in adulthood

3.Stimulus preparedness explains phobia

TRUe sp specific phobias

4.Sleep walking is seen in depression

FALSE - prob due to reduced rem latency, and therefore less stage 3 n 4

7.The differences in scores between BDI and HAM-D are due to the way they are conducted

FASLE - all the other diffs as well... they are completely diff questionnaires if you read them

8.Peripheral CCK release reduces satiety

FALSE - it signals satiety

9.The effect of cortisol is more than that of DHEA in adolescent depression?

10.Bulimia is associated with increased mortality

FALSE (TRUE for anorexia - had a link from medline

http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=PubMed&list_uids=9587884&dopt=Abstract

11.In treatment of anorexic patients with severe weight loss, initial weight gain is associated by cognitive improvement

FALSE - again small study can look up in medline

12.Anorexia can be prevented by education in schools, activities and peer focus group discussions ?

TRUE (probably exam question was phrased differently, as in reduce the incidence of..)

13.T4 levels are raised in anorexia nervosa ?

FALSE tsh and t4 can be normal

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5.Reduced fertility is seen in late onset paraphrenia.

TRUE.

ref: International Journal of Geriatric Psychiatry

Volume 7, Issue 8

6.Emotional blunting is characteristic of PTSD.

FALSE.

emotional blunting can be seen in PTSD but is not characteristic.

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^^^the anterior thalamus is affected in huntington's disease

any takers?? :o

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a few more:

1. Introversion is thought to be due to excessive sympathetic lability

2. Decreased activity in prefrontal cortex on PET scan is seen in OCD

3. OCD is associated with increased blood flow in prefrontal cortex and basal ganglia

4. an inter-ictal EEG in automatisms is of limited value

5. The ratio of cortisol to DHEA is increased in adolescents with depression

6. more than 50% of children with conduct disorder have abnormal EEG

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4. an inter-ictal EEG in automatisms is of limited value

False

In addition to loss of consciousness, patients with complex partial seizures usually exhibit automatisms, such as lip-smacking, repeated swallowing, clumsy perseveration of an ongoing motor task, or some other complex motor activity that is undirected and inappropriate. Postictally, patients are confused and disoriented for several minutes, and determining the transition from ictal to postictal state may be difficult without simultaneous EEG recording.

Merritt's Neurology

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6. more than 50% of children with conduct disorder have abnormal EEG

False

I think this one refers to the fact that 'The cooccurrence of seizure disorder and ADHD is not uncommon'.But more than 50% sounds not true.

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6 More:

1.Imaging studies have shown increased blood flow to prefrontal cortex in post-traumatic stress disorder

2.Introversion is thought to be due to excessve sympathetic lability.

3.Recurrent urinary tract infections in pregnancy lead to cognitive impairment.

4.The suicide rate in HIV is 10% higher than expected

5.Emotional lability in a patient with dementia indicates vascular dementia rather than AD

6.5%of elderly schizophrenics have a family history of schizophrenia in the first degree relatives

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6. 5% of elderly schizophrenics have a first degree relative with Scz.

Depends on age...Till the age of 50 risk is about 10%. In those above 59 (very late onset schizophrenia) the risk of Scz in first degree relatives is not increased.

OTP.

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