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MCQ September 2015
| 1. | Which ONE of the following statements is TRUE regarding sudden cardiac arrest (SCA)? |
| A. | It is most commonly caused by atrial fibrillation |
| B. | Timing of defibrillation has no relation to survival |
| C. | Survival rate has improved with advances in technology |
| D. | Among patients resuscitated outside the hospital, around 30% are ultimately discharged from hospital |
| E. | Bystander CPR is an important component in reducing SCA elapsed time |
Answer: E.
| 2. | In a recent local study concerning community-based resuscitation, which ONE of the following statements is FALSE? |
| A. | Infection risk was of concern to a significant proportion of doctors. |
| B. | Those with CPR certification felt more confident in performing CPR. |
| C. | Those with CPR certification were no more confident in the use of automated defibrillator than those without certification. |
| D. | Those working in public clinics were less likely to be concerned about injuries caused by automated defibrillator usage. |
| E. | Only a minority of doctors were concerned about medicolegal issues. |
Answer: C.
| 3. | All of the following statements about dacryocystitis are correct EXCEPT: |
| A. | It usually occurs in patients with underlying nasolacrimal duct obstruction. |
| B. | Staphylococcus and streptococcus are commonly involved. |
| C. | Intravenous antibiotic is the definitive treatment. |
| D. | It may proceed to orbital cellulitis. |
| E. | A painful swelling is present over the nasal aspect of the lower eyelid. |
Answer: C.
| 4. | Which of the following statements concerning keratitis is INCORRECT? |
| A. | Patients usually present with painful red eye, reduced vision and photophobia. |
| B. | Localized ulcer or abscess may be seen over the cornea. |
| C. | Pseudomonas aeruginosa is the commonest causative organism in contact lens keratitis. |
| D. | Steroid is contraindicated in all causes of corneal ulceration. |
| E. | Systemic antiviral therapy is indicated in keratitis complicating herpes zoster ophthalmicus. |
Answer: D.
| 5. | Which of the following is NOT a case definition feature for dengue without warning signs? |
| A. | Positive tourniquet test. |
| B. | Retro-orbital pain. |
| C. | Myalgia. |
| D. | Nausea. |
| E. | Leukopenia. |
Answer: B.
| 6. | Regarding mosquito preventive measures, which ONE of the following statements is TRUE? |
| A. | Repellents should be applied to skin under clothing. |
| B. | Repellents must also be applied to simple abrasions in order to minimize exposure. |
| C. | Children should use higher concentrations of DEET containing repellents. |
| D. | Roll-on preparations are preferred over sprays for children. |
| E. | Pregnant should avoid using repellents. |
Answer: D.
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