dermatology

Question 1

erythema multiforme/Stevens-Johnson syndrome/toxic epidermal necrolysis

Answer 1

sulfa antibiotics, penicillins, and barbiturates), viral or Mycoplasma infections, and recent immunization have been implicated.

Question 2

ampicillin/sulbactam is?

Answer 2

unasyn gram +/- but not pseudomonas

Question 3

piperacillin/tazobactam is?

Answer 3

zosyn gram+/- and pseudomonas

Question 4

seborrheic dermatitis

Answer 4

treat with anti danfruff shampo
erythema and waxy scaling
found in skin folds and hair bearin gof face scalp, chest and groin

Question 5

woods light

tonea versicolor?

Answer 5

green or yello

Question 6

woods light pseudomonas

Answer 6

yellow or green

Question 7

woods like porhyia cutaneos

Answer 7

urine color change to orange or yellow

Question 8

corticosteroid and potency

Answer 8

teroid’s ability to cause vasoconstriction determines classification

Hydrocortisone is a relatively low potency steroid and does not adequately penetrate thickened parts of the skin such as the sole or palm. Fluorinated steroids are to be avoided in pregnant women.

Question 9

Creams

Answer 9

mixture of oils, water and preservatives and are best used for acute rather than chronic conditions

Question 10

Gels

Answer 10

greaseless mixtures of propylene glycol with water and may or may not contain alcohol

Question 11

singles in the phthalmic branch of the fifth cranial nerve (V1).

Answer 11

Tzanck preparation can identify the herpes viruses but cannot distinguish among them and therefore would not allow definitive diagnosis of a herpes zoster infection without a viral culture.

Question 12

eczema herpeticum. Which of the following is FALSE regarding this condition?

Answer 12

death as high as 10%
HSV or VSV
It is often mistaken as an exacerbation or a superimposed impetigo infection.
adenopathy

Question 13

Rocky Mountain Spotted Fever

Answer 13

characteristically begins on wrist, forearms, and ankles. Within 6-18 hours, the rash spreads centripetally to the arms, thighs, trunk, and face.

Question 14

Chronic zinc deficiency leads

Answer 14

including patches and plaques of dry, scaly, sharply marginated and brightly red eczematous dermatitis evolving into vesiculobullous, pustular, erosive, and crusted lesions that initially involve the perioral and anogenital areas. Progression can involve the scalp, hands, feet, trunk and flexural regions. There may be diffuse alopecia and graying of remaining hair. Nail manifestations may include loss of nails or paronychia. A red, glossy tongue is common, and the oropharynx may reveal aphthous-like ulcers.

Question 15

ITP (immune thrombocytopenic purpura)

Answer 15

treat with steroids

Platelet transfusions can induce inflammatory (autoantibody) response and worsen the patient’s condition by increasing platelet destruction. Intracranial hemorrhage is the most feared complication of ITP, and intracranial bleeding is a risk even if levels do not fall as low as 2,500/mm3 (20,000/mm3 is a commonly cited threshold for spontaneous intracranial bleeding). The PT is expected to be normal, and intra-articular bleeding is not a major feature of ITP.