CNS
Misc
Lungs
GI
What is that??
100
Empiric treatment for bacterial meningitis in a 64 year old patient with no allergies?
Vancomycin, ceftriaxone, ampicillin
100
Hot tub folliculitis. What is the pathogen?
Pseudomonas
100
Classic lab abnormality in the setting of Legionella?
Hyponatremia
100
Watery diarrhea on a cruise ship. What is the pathogen?
Norovirus
100
Erythema migrans (bull's eye)
200
What MRI finding suggests HSV encephalitis?
Temporal lobe abnormalities, like sclerosis
200
Skin infection after saltwater exposure and history of cirrhosis. What is the pathogen?
Vibrio vulnificus
200
Name 3 infections that require airborne isolation.
COVID, TB, measles, chickenpox
200
Bloody diarrhea + liver abscess. What is the pathogen?
Entamoeba histolytica
200
EGD
Esophageal candidiasis
300
Adjunctive dexamethasone has been shown to be beneficial for meningitis caused by which pathogen?
Strep pneumo
300
A patient with syphilis develops fever, chills, and worsening rash within 24 hours after starting penicillin. What is the diagnosis? How do we manage it?
Jarisch–Herxheimer reaction
Supportive care (NOT a penicillin allergy)
300
When do we initiate steroids for PJP?
PaO2 <70 or A-a gradient > 35
300
Traveler with diarrhea + fever + dysentery. Best treatment?
Azithromycin
300
Peripheral smear
Maltese cross -- Babeosis
400
Encephalitis + acute flaccid paralysis? What is the pathogen?
West nile virus
400
A young adult has had multiple episodes of meningococcal infection—what underlying condition should you suspect?
Terminal complement deficiency (C5–C9)
400
A patient develops rapid-onset pulmonary edema and shock after exposure to rodent droppings in the Southwest. What is the pathogen?
Hantavirus
400
Treatment for cryptosporidium?
Nitazoxanide
400
HIV patient. CD4 count 85
Toxoplasmosis
500
Why might RBCs be present in CSF in encephalitis?
Hemorrhagic necrosis, especially seen in HSV encephalitis
500
Oral hairy leukoplakia is caused which which infection?
EBV
500
A ventilated patient has a PaO₂ of 75 mmHg on FiO₂ 0.50 with PEEP of 5. How would you classify the severity of ARDS?
Moderate ARDS (P/F = 150)
- Mild ARDS: P/F ratio >200 to ≤300
- Moderate ARDS: P/F ratio >100 to ≤200
- Severe ARDS: P/F ratio ≤100
500
Define both severe C diff and fulminant C diff
Severe: Cr > 15, WBC >15
Fulminant: Shock, ileus, toxic megacolon
500
+ galactomannan
Invasive aspergillosis
+ Halo sign, aspergilloma