MRCPsych Paper B (CAMHS) - Questions & Answers
(Expert Verified)
Risk Factors for ADHD (6) Right Ans - Maternal smoking, alcohol or heroin
during pregnancy, LBW, Foetal Hypoxia, Severe early psychosocial adversity
Pica most associated with? Right Ans - Autism
Involuntary rapid, recurrent, non-rhythmic movements and vocal production
of sudden onset and serves no apparent purpose? Right Ans - Tourette's
Syndrome
What differentiates tics from the stereotypes movements seen in autism/MR?
Right Ans - Movement lacks rhythmicity
Common side effect of methylphenidate? (2) Right Ans - Insomnia and
appetite suppression
What suggests a diagnosis of Asperger's syndrome rather than autism?
Right Ans - Normal Linguistic Development
Treatment recommended by NICE as first line for pre-school children with
ADHD? Right Ans - Parental Training Programmes
Child with ADHD on methylphenidate develops tics. Alternative tx? Right
Ans - Atomoxetine
Proportion of those with autism estimated to have an IQ below 70 Right
Ans - 50%
Female proportion of those who perpetuate Munchausen's syndrome by
proxy Right Ans - 80%
8 month girl 6 month history of repeated eye blinking, grimacing, explosive
use of obscene gestures/phrases. At 3mth RV - issues resolved? Right Ans -
Transient tic disorder
, Treatment contraindicated in ADHD under 6y? Right Ans - Pemoline
Type of empathy impaired in autism? Right Ans - Cognitive empathy (but
not affective empathy) typicall impaired
Regarding Pica, ingestion of which substance is associated with a zinc
deficiency? Right Ans - Clay
Concordance rate for autism in identical twins (MZ Twins)? Right Ans -
60%
Most appropriate treatment for vocal/motor tics and ADHD? Right Ans -
Clonidine (Tourette's Syndrome)
Prevalence of conduct disorder in UK in those aged 5-15y? Right Ans - 5%
Drug to be avoided in ADHD in 9 year old female with deranged LFTs?
Right Ans - Atomoxetine
Percentage of children with nocturnal enuresis that have a first degree
relative who has had the same problem? Right Ans - 75%
Most appropriate tx option for 3yrs old w normal development who still wets
the bed at night (no physical condition) Right Ans - Reassurance
Most common disorder in kids ages 5-15 in England according to Dolt 1999
Right Ans - Conduct disorder
Age for early onset F20? Right Ans - 13-18y
Age for very early onset F20 (VEOS)? Right Ans - Less than 13y
Percentage of 10yo that experience nocturnal enuresis at any one time?
Right Ans - 5%
Effort must be made to exclude which disease when evaluating a child with
encoperesis? Right Ans - Hirschprung Disease
Less severe form of conduct disorder? Right Ans - Oppositional Defiant
Disorder
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