Infectious Disease Flashcards
Owl eye inclusion bodies should make you think of what diagnosis?
CMV (Cytomegalovirus)
You have a patient with positive blood cultures for candida, what is the first line drug?
Amphotericin B
What is the treatment for pertussis?
Erythromycin x 7 days
A leukemia patient has a CT of the liver which shows punched out lesions - what diagnosis should you be thinking of?
HEpatosplenid candida
What disease doe Rickettsia rickettsia cause?
Rocky Mountain spotted fever
An india ink stain showing cysts should make you think of what diagnosis?
Cryptococcosis
A COPD patient has apical cavities and calcifies nodes on his CXR, You also discover that he has a pet bat and. few birds. What is the most likely diagnosis>
Histoplasmosis
An HIV patient present with a nonproductive cough and CXR that shot diffuse interstitial infiltrates. What is the most likely diagnosis>
Pneumocystitiss jiroveci pneumonia
Honey and babies should make you think of what diagnosis?
Botulism (flaccid baby syndrome)
What type of organism causes botulism?
A Gram + rod - Clostridium botuliinum
What is the treatment for botulism?
an antitoxin
A patient presents to the ED with acute progressive weakness, diplopia and a very dry mouth. What organism may be causing this?
Clostridium Botulinum
Rice water stools should make you think of what diagnosis
=Vibrio Cholrea
Is diphtheria a gram + or Grma - organism>
Gram +
A stuck on grey membrane in the pharynx should make you think of what diagnosis?
Diptheria
What are 4 steps for treating diphtheria?
antitoxin, penicillin, remove the membrane, report the case to the CDC
What is the clinical name for whooping cough?
Pertussis
What type of organism causes tetanus?
Clostridium Tetani - Gram + rod (aerobic)
A patient ate out last night and today has cramping and bloody diarrhea. What is the most likely organism>
Salmonella
Diarrhea with blood and mucous should make you think of what ?
Shigella
What is the best way to diagnose malaria?
a peripheral blood smear
What organism has been linked to reactive arthritis?
Shigella. Also remember that reactive arthritis has a + HLA-B27
What is the treatment for Shigella?
Bactrim or flouroquinolones and hydration
What is the organism that causes Lyme disease?
Borrelia burgdorferi
What is the minimum amount of time that is needed for a tick to transfer Lyme diease to a human?
24 hours
What is the drug of choice to treat Lyme disease in kids or pregnant women>
Amoxicilliin
What is the drug of choice to treat C. difficile?
Metronidazole (Flagyl)
A patient was in the woods yesterday and today presents with erythema migrant. Whats is the most likely diagnosis>
Lyme disease
What is the drug that is used for the treatment or prophylaxis off malaria>
Chloroquine
A patient was camping for a few days and now has a rash that began on his wrists and ankles. What is the most likely diagnosis>
Rocky Mountain Spotted fever
What is the drug of choice to treat Rocky Mountain Spotted Fever?
Doxycycline
What is the drug of choice for the treatment of syphillis?
Penicillin
`Any reference to a dark field microscopy should make you think of what organism?
Treponema pallidum
Is staph gram + or gram -?
Gram +
A patient being treated with PCN for a syphillis infection develops fever, chills, muscle pain and headaches. Do you stop the treatment?
No. This is a JArisch-Herxheimer reaction. The patient must be closely monitored, but it is a response to the related endotoxin from the death of the spirochetes and not and allergic reaction.
What organism is believed to the be the main culprit in creating peptic ulcers?
Helicobactoer pylori