Infectious disease

Question 1

3 risk factors for infective endocarditis?

Answer 1

IVDU
immunocompromised
pre-existing heart disease
- prosthetic valve
- rheumatic heart disease
- congenital...
hemodialysis

Question 2

How does Parvovirus B19 present?

Bonus: Treatment?

Answer 2

Begins with a nonspecific viral prodrome

1. slapped cheeks - erythematous malar
   rash with circumoral pallor
2. lacy rash over trunk and extremities

Self-limited, lasting approx. 1 week

Advise to keep away from pregnant women

Question 3

What is scarlet fever?
Pathognomonic feature?

bonus for 2 more findings

Answer 3

1. Sequelae of strep throat infection, GAS; swab; tx with penicillin
2. strawberry tongue!
   ____________________________________
   History: non-specific fever, sore throat, headache, N/V

Mouth

• Red pharynx with exudate
• bright red hemorrhagic spots on soft palate
• Strawberry tongue

Rash
- characteristically starts in groin/axilla, spreads to trunk/extremities, then desquamates after 2 weeks

Tx: Penicillin VK preferred or Amoxicillin or Azithromycin

Question 4

Fluoroquinolones: Name three

Answer 4

Ciprofloxacin
Levofloxacin
Moxifloxacin