10 - dermatology mcqs - 16 to 20

16q: the most frequent cause of recurrent genital ulceration in a sexually active male is ?

1. chancroid
2. apthous ulcers
3. herpes infection
4. syphilis

answer : c . herpes infection .

17q: rain drop pigmentation is observed in ?

1. chronic lead poisoning
2. chronic arsenic poisoning
3. chronic mercury poisoning
4. all the above

answer : b .

18q: drug of choice for lymphogranuloma venerum ?

1. doxycycline
2. ampicillin
3. erythromycin
4. ceftriaxone

answer: a .

19q: “target lesions” are characteristic of

1. dermatitis herpetiformis
2. sulpha drug reactions
3. lichen planus
4. erythema multiforme

answer: d . MELT – Multiforme Erythema – Lesions Target .

20q: wood lamp has a frequency of ?

1. 250 nm
2. 300 nm
3. 320 nm
4. 360 nm

Answer: d . 360 nm .