MCQOPTIONS
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MCQOPTIONS
This section includes 43 Mcqs, each offering curated multiple-choice questions to sharpen your Biology knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Which is false regarding staples? |
| A. | they have a higher rate of infection than sutures |
| B. | they are cheaper than sutures |
| C. | they are quicker to insert than sutures |
| D. | they are more painful to remove than sutures |
| E. | they do not provide as accurate a finish as sutures |
| Answer» B. they are cheaper than sutures | |
| 2. |
All of the following statements about erythroderma are true EXCEPT |
| A. | There is > 90% body surface involvement |
| B. | It is more common in males |
| C. | The most common cause is drug reaction |
| D. | High output cardiac failure is a recognised sequelae |
| E. | Splenomegaly is associated in about 15% |
| Answer» D. High output cardiac failure is a recognised sequelae | |
| 3. |
The feature you would NOT expect to find in a case of erythema multiforme after cefaclor use is |
| A. | Itch |
| B. | Target lesions |
| C. | No cross sensitivity with cefotaxime |
| D. | Complete resolution in 2-3 weeks, without sequelae |
| E. | Arthralgia |
| Answer» B. Target lesions | |
| 4. |
Which of the following features is consistent with scarlet fever |
| A. | Punctate rash on neck and truck |
| B. | Perioral erythema |
| C. | Geographic tongue |
| D. | Resolution without desquamation |
| E. | Only occurs in association with streptococcal pharyngitis |
| Answer» B. Perioral erythema | |
| 5. |
Geographic tongue is caused by |
| A. | Kawasaki disease |
| B. | Syphilis |
| C. | Acromegaly |
| D. | Pernicious anaemia |
| E. | None of the above |
| Answer» F. | |
| 6. |
Erythema Nodosum is an example of |
| A. | Panniculitis |
| B. | Vasculitis |
| C. | Serum sickness |
| D. | Erythroderma |
| E. | Type 2 hypersensitivity |
| Answer» B. Vasculitis | |
| 7. |
Which imaging modality is most successful at detecting suspected foreign bodies in wounds? |
| A. | normal plain xray |
| B. | plain xray soft tissue view |
| C. | ultrasound |
| D. | CT |
| E. | Bone scan |
| Answer» E. Bone scan | |
| 8. |
The toxic reaction you would least expect with bupivocaive is |
| A. | Anaphylaxis |
| B. | Sense of impending doom |
| C. | Fitting |
| D. | Arrythmia |
| E. | Depressed level of consciousness |
| Answer» B. Sense of impending doom | |
| 9. |
Which is the best irrigation fluid for most wounds? |
| A. | normal saline |
| B. | povodine iodine |
| C. | aquesous chlorhexidine |
| D. | chlorhexidine with cetramide |
| E. | a combination of A and B |
| Answer» B. povodine iodine | |
| 10. |
A backpacker returns from Thailand claiming to have been bitten by a dog in Bangkok the week before. There is a healing wound with scab on the right forearm ulnar aspect of the extensor surface. She cannot remember her vaccination status. Which statement is most correct |
| A. | You should give 250U TIG, 0.5mL of ADT, commence oral antibiotic and refer back to the GP for further care complete ADT vaccinations |
| B. | There is a strong risk that cellulitis due to pasturella multocida will develop in the next week |
| C. | ADT is contraindicated if she is either haemophilliac or pregnant |
| D. | You should give 250U TIG, 0.5mL of ADT 3 x in the next 3 months, 20U/kg RIG once and 0.1mL HDCV 5 times in the next month |
| E. | Her risk of contracting rabies would not be reduced if she had cleaned the initial wound thoroughly straight after the injury occurred |
| Answer» E. Her risk of contracting rabies would not be reduced if she had cleaned the initial wound thoroughly straight after the injury occurred | |
| 11. |
Which of the following is associated with a lower incidence of wound infection (given adequately cleaned wounds) |
| A. | Steristrips |
| B. | Staples |
| C. | Histoacryl |
| D. | Antibiotics for puncture wounds |
| E. | All of the above |
| Answer» F. | |
| 12. |
If a patient presents with DIC after dog bite the likely organism would be |
| A. | Pseudomonas Aeruginosa |
| B. | Staphylococcus Aureus |
| C. | Streptococcus Viridans |
| D. | Capnocytophaga Caniniosus |
| E. | Pasturella Multocida |
| Answer» E. Pasturella Multocida | |
| 13. |
Which of the following is not associated with poor wound healing |
| A. | Lower limb lacerations in the elderly |
| B. | Broad based flap lacerations |
| C. | Long flap lacerations |
| D. | Haematoma beneath a flap laceration |
| E. | All of the above are associated with poor wound healing |
| Answer» C. Long flap lacerations | |
| 14. |
Regarding bites which is false? |
| A. | all hand bites (animal and human) should be managed by delayed primary closure or secondary intention |
| B. | primary wound closure to the head and neck is acceptable after appropriate wound irrigation |
| C. | wounds less than1-2 cm have a lower rate of infection and can be safely treated with primary closure |
| D. | infection with pasturella multicodia is specific to cat bites |
| E. | infection with capnocytophaga caninorsus is secific to dog bites |
| Answer» D. infection with pasturella multicodia is specific to cat bites | |
| 15. |
Which rash is not characteristically found on the hands? |
| A. | secondary syphilis |
| B. | erythema multiforme |
| C. | gonococcus |
| D. | meningococcus |
| E. | herpes simplex |
| Answer» F. | |
| 16. |
In what dermatological condition is a Tsanck smear used to aid diagnosis? |
| A. | Skin lesions of meningococcus |
| B. | Herpes vesicular lesions |
| C. | Secondary syphilis |
| D. | Urticaria |
| E. | EBV |
| Answer» C. Secondary syphilis | |
| 17. |
Human bites to what area have the highest rate of infection? |
| A. | face |
| B. | arm |
| C. | shin |
| D. | back |
| E. | hand |
| Answer» F. | |
| 18. |
Which is not true of erythema multiforme? |
| A. | less than 30% of the skin must be blistered to make this diagnosis |
| B. | classically there are target lesions, especially on the periphery |
| C. | there tends to be associated fever and arthralgia |
| D. | it settles within 7-10 days if left untreated |
| E. | steroids orally quicken the recovery |
| Answer» F. | |
| 19. |
Which drug is not likely to cause toxic epidermal necrolysis? |
| A. | penicillin |
| B. | trimethoprim |
| C. | carbamazepine |
| D. | cimetidine |
| E. | piroxicam |
| Answer» E. piroxicam | |
| 20. |
Which is the correct regimen for wound irrigation? |
| A. | 21 gauge needle, 50 ml syringe |
| B. | 21 gauge needle, 20 ml syringe |
| C. | 19 gauge needle, 50 ml syringe |
| D. | 19 gauge needle, 20 ml syringe |
| E. | 1 litre bag with giving set wide open |
| Answer» D. 19 gauge needle, 20 ml syringe | |
| 21. |
Which suture should be used for wounds at risk of infection? |
| A. | monofilament, natural |
| B. | monafilament, synthetic |
| C. | multifilament, natural |
| D. | multifilament, synthetic |
| E. | catgut |
| Answer» C. multifilament, natural | |
| 22. |
Which is not readily seen on Xray? |
| A. | all glass greater than 2mm |
| B. | gravel |
| C. | teeth |
| D. | fish bone |
| E. | steak bone |
| Answer» E. steak bone | |
| 23. |
Which antibiotic regimen is recommended in antibiotic guidelines for bites with a high risk of infection? |
| A. | augmentin duo forte |
| B. | penicillin |
| C. | ampicillin |
| D. | cephalexin |
| E. | metronidazole plus penicillin |
| Answer» B. penicillin | |
| 24. |
How many days it take a wound to reach 100% of its original tensile strength? |
| A. | 40 |
| B. | 100 |
| C. | 150 |
| D. | 250 |
| E. | 360 |
| Answer» D. 250 | |
| 25. |
When antibiotics are given for a wound with a high risk of infection, how should they be given in the ED? |
| A. | orally prior to wound manipulation, with discharge prescription |
| B. | iv prior to wound manipulation, with discharge prescription |
| C. | a prescription to be filled on discharge |
| D. | both A and B give the same result |
| E. | infiltrated around wound i.m |
| Answer» C. a prescription to be filled on discharge | |
| 26. |
Which medication does not commonly cause photosensitivity eruptions? |
| A. | thiazide diuretics |
| B. | spironolactone |
| C. | loop diuretics |
| D. | amioderone |
| E. | sulfonylureas |
| Answer» C. loop diuretics | |
| 27. |
At which distance should two point discrimination be possible? |
| A. | 2mm |
| B. | 5mm |
| C. | 7.5mm |
| D. | 10mm |
| E. | 15mm |
| Answer» C. 7.5mm | |
| 28. |
Which is not true of antiviral medications if given within 72 hours of vesicle formation in herpes zoster? |
| A. | it decreases time to healing |
| B. | it decreases new lesion formation |
| C. | it decreases recurrence |
| D. | it possibly decreases pain |
| E. | it possibly decreases duration of post herpetic neuralgia |
| Answer» D. it possibly decreases pain | |
| 29. |
Which is not true of measles? |
| A. | Koplicks spots are seen a few days after the onset of rash |
| B. | The rash appears a few days after the prodrome, starting at the head and moving downwards |
| C. | Unimmunised contacts should be given MMR within 72 hours if over 6 months of age |
| D. | If greater than 72 hours immunoglobulin should be given i.m. |
| E. | Unimmunised contacts should be excluded from school for 2 weeks |
| Answer» B. The rash appears a few days after the prodrome, starting at the head and moving downwards | |
| 30. |
Which is not true of henoch schonlein purpura? |
| A. | it is a vasculitis of unknown cause |
| B. | purpura are classically on the lower limbs |
| C. | abdominal pain and malena are documented |
| D. | renal disease is a potentially serious complication |
| E. | steroids diminish the likelihood of renal complications |
| Answer» F. | |
| 31. |
Which wound does not require antibiotic prohylaxis upon discharge (assuming seen within 3 hours and appropriate wound care applied)? |
| A. | intraoral |
| B. | complicated dog bites |
| C. | complicated human bites |
| D. | all cat bites |
| E. | axillary |
| Answer» F. | |
| 32. |
Which wound is most likely to produce tetanus? |
| A. | Intraoral laceration |
| B. | scalp laceration with underlying skull fracture |
| C. | crush injury to distal phalynx |
| D. | frostbite |
| E. | puncture wounds |
| Answer» F. | |
| 33. |
Which is NOT TRUE of staphylococcal scalded skin syndrome? |
| A. | it is most commonly seen in infants |
| B. | it is toxin mediatied |
| C. | there is no mucosal invovement |
| D. | it tends to be less severe than toxic epidermal necrolysis |
| E. | the focus for infection may be non cutaneous |
| Answer» D. it tends to be less severe than toxic epidermal necrolysis | |
| 34. |
Which is not a possible cause of a blistered patient? |
| A. | molluscum contagiosum |
| B. | hand, foot and mouth disease |
| C. | eczema herpeticum |
| D. | allergic contact dermatitis |
| E. | bites |
| Answer» B. hand, foot and mouth disease | |
| 35. |
Which infectious erythema is purely caused by toxin alone and not from the infectious process as well? |
| A. | toxic shock syndrome |
| B. | scarlet fever |
| C. | streptococcal toxic shock syndrome |
| D. | staphylococcal scalded skin syndrome |
| E. | all of the above |
| Answer» B. scarlet fever | |
| 36. |
Which is not one of the five criteria other then fever required to make the diagnosis of Kawasakis disease? |
| A. | cervical LN |
| B. | peripheral changes. Eg erythema and oedema |
| C. | bilateral non purulent conjunctivitis |
| D. | polymorphous rash |
| E. | pustular tonsillitis |
| Answer» F. | |
| 37. |
Which rash is not usually itchy? |
| A. | urticaria |
| B. | eczema |
| C. | scabies |
| D. | bites |
| E. | scarlet fever |
| Answer» F. | |
| 38. |
Which is not true of scarlet fever? |
| A. | the erythema appears very early after the prodrome begins |
| B. | the rash does not blanche |
| C. | there is circumoral pallor |
| D. | there is often pharyngotonsillitis |
| E. | there is a strawberry tongue |
| Answer» C. there is circumoral pallor | |
| 39. |
Which dose not tend to produce palpable purpura? |
| A. | meningococcus |
| B. | vasculitis |
| C. | SLE, rheumatoid arthritis |
| D. | Clotting disorders |
| E. | Henoch schonlein purpura |
| Answer» E. Henoch schonlein purpura | |
| 40. |
Which is not associated with erythema nodosum? |
| A. | sarcoid |
| B. | crohns disease |
| C. | leukemia |
| D. | salmonella |
| E. | hep B |
| Answer» F. | |
| 41. |
Which is the usual causative organism in toxic shock syndrome? |
| A. | staph aureus |
| B. | e coli |
| C. | pneumococcus |
| D. | strep pyogenes |
| E. | meningococcus |
| Answer» B. e coli | |
| 42. |
Which is NOT TRUE of pemphigus and pemphigoid? |
| A. | the prognosis of pemphigoid is better |
| B. | pemphigous lesions are intra dermal where as the lesions in pemphigoid are subdermal |
| C. | mucosa is more often involved in pemhigous |
| D. | clinically the two can be usually differentiated with a good examination |
| E. | they are both autoimmune disorders |
| Answer» E. they are both autoimmune disorders | |
| 43. |
Which is not associated with pyoderma gangrenosum? |
| A. | IBD |
| B. | Rheumatoid arthritis |
| C. | Leukemia |
| D. | salmonella |
| E. | myeloma |
| Answer» E. myeloma | |