akidszone.com – MCQs, Mock Tests | Biology Dermatology and Wounds MCQ

1 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

✅ Correct Answer: 3

2 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

✅ Correct Answer: 1

3 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

✅ Correct Answer: 1

4 Erythema Nodosum is an example of

A Panniculitis B Vasculitis C Serum sickness D Erythroderma

✅ Correct Answer: 1

5 Geographic tongue is caused by

A Kawasaki disease B Syphilis C Acromegaly D None of These

✅ Correct Answer: 4

6 The toxic reaction you would least expect with bupivocaive is

A Anaphylaxis B Sense of impending doom C Fitting D Arrythmia

✅ Correct Answer: 1

7 Which of the following is associated with a lower incidence of wound infection (given adequately cleanedwounds)

A Steristrips B Staples C Histoacryl D All of the above

✅ Correct Answer: 4

8 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

✅ Correct Answer: 2

9 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

✅ Correct Answer: 4

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 â€“ complete ADT vaccinations B. There is a strong risk that cellulitis due to pasturella multocida will develop in the next week 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

✅ Correct Answer: 4

11 Which rash is not characteristically found on the hands?

A secondary syphilis B erythema multiforme C gonococcus D herpes simplex

✅ Correct Answer: 4

12 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

✅ Correct Answer: 2

13 Which is not true of erythema multiforme?

A less than 30% of the skin must be blistered to make this diagnosis B. D. E. B classically there are target lesions, especially on the periphery C it settles within 7-10 days if left untreated D steroids orally quicken the recovery

✅ Correct Answer: 4

14 Which drug is not likely to cause toxic epidermal necrolysis?

A penicillin B trimethoprim C carbamazepine D cimetidine

✅ Correct Answer: 4

15 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

✅ Correct Answer: 1

16 Which is NOT TRUE of staphylococcal scalded skin syndrome?

A it tends to be less severe than toxic epidermal necrolysis B it is toxin mediatied C there is no mucosal invovement D None of these

✅ Correct Answer: 3

17 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

✅ Correct Answer: 1

18 Which rash is not usually itchy?

A urticaria B eczema C scabies D scarlet fever

✅ Correct Answer: 4

19 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

✅ Correct Answer: 2

20 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 polymorphous rash D pustular tonsillitis

✅ Correct Answer: 4

21 Which dose not tend to produce palpable purpura?

A meningococcus B vasculitis C SLE, rheumatoid arthritis D Clotting disorders

✅ Correct Answer: 4

22 Which is not associated with erythema nodosum?

A crohns disease B salmonella C leukemia D hep

✅ Correct Answer: 4

23 Which is not associated with pyoderma gangrenosum?

A Rheumatoid arthritis B Leukemia C salmonella D myeloma

✅ Correct Answer: 4

24 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 exa C mucosa is more often involved in pemhigous D clinically the two can be usually differentiated with a good examination

✅ Correct Answer: 4

25 Which is the usual causative organism in toxic shock syndrome?

A staph aureus B e coli C pneumococcus D strep pyogenes

✅ Correct Answer: 1

26 Which medication does not commonly cause photosensitivity eruptions?

A thiazide diuretics B spironolactone C loop diuretics D amioderone

✅ Correct Answer: 2

27 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

✅ Correct Answer: 3

28 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.

✅ Correct Answer: 1

29 Which is not true of henoch schonlein purpura?

A purpura are classically on the lower limbs B abdominal pain and malena are documented C renal disease is a potentially serious complication D steroids diminish the likelihood of renal complications

✅ Correct Answer: 4

30 How many days it take a wound to reach 100% of its original tensile strength?

A 40 B 100 C 150 D 250

✅ Correct Answer: 3

31 Which imaging modality is most successful at detecting suspected foreign bodies in wounds?

A normal plain xray B plain xray â€˜soft tissue viewâ€™ C ultrasound D CT

✅ Correct Answer: 4

32 Which is the best irrigation fluid for most wounds?

A normal saline B povodine â€“ iodine C aquesous chlorhexidine D chlorhexidine with cetramide

✅ Correct Answer: 1

33 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

✅ Correct Answer: 3

34 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

✅ Correct Answer: 2

35 Which wound is most likely to produce tetanus?

A A. Intraoral laceration B scalp laceration with underlying skull fracture C crush injury to distal phalynx D puncture wounds

✅ Correct Answer: 4

36 Which suture should be used for wounds at risk of infection?

A monofilament, natural B monafilament, synthetic C multifilament, natural D multifilament, synthetic

✅ Correct Answer: 2

37 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

✅ Correct Answer: 1

38 At which distance should two point discrimination be possible?

A A. 2mm B 5mm C 7.5mm D 10mm

✅ Correct Answer: 2

39 Which is not readily seen on Xray?

A all glass greater than 2mm B gravel C teeth D fish bone

✅ Correct Answer: 4

40 Human bites to what area have the highest rate of infection?

A face B shin C back D hand

✅ Correct Answer: 4

41 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

✅ Correct Answer: 3

42 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

✅ Correct Answer: 1

43 Which wound does not require antibiotic prohylaxis upon discharge (assuming seen within 3 hours and appropriate wound care applied)?

A complicated dog bites B complicated human bites C all cat bites D xillary

✅ Correct Answer: 4

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Dermatology and Wounds MCQ