MRCPsych Paper B CAMHS: Questions & Expert Verified
Answers
Most appropriate tx option for 3yo 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
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%
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
Conclusion of POTS study regarding treatment of OCD in children? (Paediatric
OCD Treatment Study) Right Ans - CBT + SSRI or CBT alone should begin
immediately
Recommended treatment of mania in 15 yo female? Right Ans -
Aripiprazole (up to 12 weeks)
Amylophagia refers to? Right Ans - Abnormal ingestion of starch (pica)
1st choice for children with ADHD? And need to be monitored for? (3)
Right Ans - Methylphenidate and need to be monitored for growth (height and
weight), BP and HR
Percentage of chronic encopresis thought to be functional? Right Ans - 90%
Disorder with strongest link with maternal/prenatal smoking? Right Ans -
ADHD
Feature that suggests disinhibited rather than reactive attachment disorder?
Right Ans - Clinginess
Answers
Most appropriate tx option for 3yo 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
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%
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
Conclusion of POTS study regarding treatment of OCD in children? (Paediatric
OCD Treatment Study) Right Ans - CBT + SSRI or CBT alone should begin
immediately
Recommended treatment of mania in 15 yo female? Right Ans -
Aripiprazole (up to 12 weeks)
Amylophagia refers to? Right Ans - Abnormal ingestion of starch (pica)
1st choice for children with ADHD? And need to be monitored for? (3)
Right Ans - Methylphenidate and need to be monitored for growth (height and
weight), BP and HR
Percentage of chronic encopresis thought to be functional? Right Ans - 90%
Disorder with strongest link with maternal/prenatal smoking? Right Ans -
ADHD
Feature that suggests disinhibited rather than reactive attachment disorder?
Right Ans - Clinginess
