OBA 1

Q1. How many % of children born to woman who take valproate during pregnancy is expected to have birth defects?

A. 10%

B. 4%

C. 0.1%

D. 5%

E. 0.2%


Q2. How many % of children born to mothers who were on valproate during pregnancy is expected to have developmental delay?

A. 3.5%

B. 10%

C. 0.1%

D. 1%

E. 0.8%


Q3. What is the prevalence of attention deficit hyperactivity disorder (ADHD) in children? 


A. 8%

B. 0.5%

C. 10%

D. 2%

E. 5% 


Q4. You diagnose a nine year old boy with ADHD. Which of the following is the most appropriate first line treatment that you can offer him? 

A. Haloperidol 

B. Fluvoxamine 

C. Behavioral management techniques 

D. Eye movement desensitization and reprocessing (EMDR) 

E. Methylphenidate 


Q5. What is the overall general population prevalence of intellectual disability?

A. 10%

B. 1%

C. 0.1%

D. 3%

E. 0.3%


Q6. You are referred by the orthopaedic team Madam Sally, a 77-year old lady who was admitted to their ward one week ago for right tibial fracture following a fall in the bathroom at home. Internal plating was successfully done however, six hours after returning to the ward, she started to become agitated and began shouting incoherently. Patient was previously quite healthy despite her age and did not have any underlying medical illnesses. What is the appropriate next step in managing this patient? 

A. Order a brain CT scan 

B. Sedate her with IM haloperidol 

C. Calm her down with tablet diazepam 

D. Ensure that her pain control is adequate  

E. Take postoperative blood investigations 


Q7.   Madam Sally’s condition improved after your initial management. Unfortunately however, she contracted hospital acquired pneumonia and her condition deteriorated to the point that she had to be transferred to the ICU. Her son tells you that she sometimes does not remember who he is. Her nurse also informs you that she sometimes becomes restless and refuses to take her medication or allow her blood to be taken. She is also sometimes seen talking to herself, especially in the evening and has started to have trouble sleeping.  What is the appropriate management at this point? 

A. Start donepezil 

B. Start risperidone 

C. Do reorientation technique

D. Teach her sleep hygiene 

E. Start clonazepam 


Q8. Madam Sally’s operative wound becomes infected and the orthopaedic team plan to remove her implant. They ask you to assess her mental capacity to give consent. Which of the following is not required for her to give consent for the procedure? 

A. Able to repeat how the procedure will be done

B. Able to understand the reasons for carrying out the procedure 

C. Able to remember information about the procedure

D. Ale to use information about the procedure to make a decision

E. Able to communicate her decision


Q9.

A 42 year old gentleman with 15 years history of schizophrenia was admitted for the third time this year for relapse. He has been on oral chlorpromazine, risperidone and olanzapine however his delusions and hallucinations persisted. Although he comes for his regular monthly follow ups, his family say that he has poor compliance to his oral medication. He responds well to oral olanzapine 20mg daily, however complains of over-sedation. 

What is the best management for this patient on discharge

A. Switch to aripiprazole

B. Plan for depot injection 

C. Continue oral olanzapine 20mg daily 

D. Reduce oral olanzapine to 15mg daily

E. Start clozapine

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