Exam 2 - Generalized rash

Question 1

What is the first step the provider should take when seeing a rash complaint?

Answer 1

Determine whether it is infectious (viral vs bacterial) or non infectious

Question 2

Examples of viral infections that can cause a rash

Answer 2

• Varicella
• Erythema infectiosum
• Roseola infantum
• Measles
• Rubella
• HIV exanthems
• Pityriasis rosea
• Mono

Question 3

Examples of bacterial infections that can cause a rash

Answer 3

• Scarlett fever
• Lyme
• RMSF
• Syphillis
• Toxic shock syndrome
• Staphococcus skin syndrome
• Folliculitis

Question 4

Examples of non infectious rashes

Answer 4

• Vasculitis
  
  • Henock-Scholein purpura (HSP)
  • Kawasaki disease
• Urticaria (allergic reaction)
• Drug reactions
  
  • Steven Johnson syndrome
  • Erythema multiforme
• Malignancy
• Glandular (acne)
• Infestations
• Autoimmune
  
  • Lupus
  • Lichen planus
  • Psoriasis

Question 5

Endocrine causes of rash

Answer 5

• Acanthosis nigricans

Question 6

Acute pruritus vs chronic pruritus

Answer 6

Acute: <6 weeks

Chronic: >6 weeks

Question 7

Possible causes of acute pruritus

Answer 7

• Urticaria
• Contact dermatitis
• Infestations

Question 8

Possible causes of chronic pruritus

Answer 8

• Dermatologic causes
  
  • Eczema
  • Bullos pemphigoid
  • Psoriasis
  • Lichen planus
  • Xerosis (dry skin)
  • Prurigo nodularis
  • Lichen simplex chronicus
  • Mycosis fungicide
• Medication side effects
• Systemic conditions

Question 9

What classification of medications can make patients itchy?

Answer 9

• Opioids
• Antibiotics
• Antidepressants
• Cardiac medications

Question 10

Systemic conditions that can cause itchiness

Answer 10

• Pregnancy
• HIV
• Chronic renal failure
• Liver disease
• Neuropathic causes
  
  • Notalgia parasthetica
  • Psychogenic causes
    
    • Depression, anxiety, delusions of parasitosis

Question 11

When asking a patient if they had been in contact with ill persons, what conditions is the provider trying to see the patient may have been in contact with?

Answer 11

• Fifth disease
  
  • Slapped cheek look, 5-15 years old
• Meningococcemia
• Roseola
• Rubeola (measles)
• Scarlet fever
• Varicella
• Viral exanthem (non specific)

Question 12

What skin conditions would the provider consider if the size is 1mm-1cm?

Answer 12

• Guttate psoriasis
• Insect bites
• Lichen planus
• Milaria rubra
• RMSF
• Roseola
• Rubella
• Scabies
• Varicella

Question 13

What skin conditions would the provider consider if lesions are 1-25 cm?

Answer 13

• Lyme disease
• Nummular eczema
• Tinea corporis
• Urticaria