Infectious Disease Flashcards
White, curd-like vaginal discharge should make you think of what diagnosis?
Vulvovaginitis (Vaginal candida infection)
Owl eye inclusion bodies should make you think of what diagnosis?
Cytomegalovirus (CMV)
If 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 for 7 days
What disease does Rickettsia ricketsii 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 clarified nodes on his chest x-ray. You also discover that he has a pet bat and a few birds. What diagnosis should you be thinking of?
Histoplasmosis
An HIV patient presents with nonproductive cough and a chest x-ray showing diffuse interstitial infiltrates. What diagnosis should you be thinking of?
Pneumocystitis jiroveci pneumonia (PCJ)
Honey and babies should make you think of what diagnosis?
Botulism
What type of organism causes botulism?
A gram + rod, clostridium botulinum
What is the treatment for botulism?
Antitoxin
A patient presents to the ER with acute progressive weakness, diplopia and a very dry mouth. What organism may be causing this?
Clostridium botulinum
Rice water stool should make you think of what diagnosis?
Cholera
Is diphtheria a gram positive or negative organism?
Gram positive
A stuck on grey membrane in the pharynx should make you think of what diagnosis?
Diptheria
What are the four steps in treating diphtheria?
Antitoxin, PCN, remove membrane and report the case to the CDC
What type of organism is tetanus?
A gram + rod, Clostridum tetani
A patient ate out last night and today has cramping and bloody diarrhea. What is the most likely organism?
Salmonella
Diarrhea with blood and mucus should make you think of what diagnosis?
Shigella
What ist he best test to diagnose malaria?
Peripheral blood smear
What organism has been linked to reactive arthritis?
Shigella
What is the treatment for shigella?
Bactrim or FQs and hydration
What organism causes lyme disease?
Borrelia burgdoferi
What is the minimum amount of time needed for a tick to transfer lyme disease?
24 hours
What is the drug of choice to treat lyme disease in kids or pregnant women?
Amoxicillin
What is the drug of choice to treat c. diff?
Metronidazole (flagyl)
A patient was in the woods yesterday and today presents with erythema migrans. What diagnosis should you be thinking of?
lyme disease
What drug is used for the treatment or prophylaxis of malaria?
Chloroquine
A patient went camping a few days ago and now has a rash tag began on his wrists and ankles. What diagnosis should you be thinking of?
Rocky mountain spotted fever
What is the drug of choice in rocky mountain spotted fever?
Doxycycline
What is the drug of choice for the treatment of syphillis?
PCN
Any reference to the dark field microscopy should make you think of what organism?
Treponema pallidum
Is staph a gram positive or negative organism?
Gram +
A patient is being treated with PCN for a syphillis infection develop fever, chills, muscle pains, and headaches. Do you stop treatment?
No this is Jarisch-Herxheimer reaction. The patient must be closely monitored, but it is a response to released endotoxin from the death of the spirochetes and is not an allergic reaction
A painless, clean base chancre should make you think of what diagnosis?
Primary syphillis
A patient complains of a rash on his palms and soles. He has a fever and chills. In conversation he mentions a strange painless chancre he had a few weeks ago. What diagnosis should you be thinking of?
Secondary syphillis, this is the most painless stage.
What is the treatment for cholera?
Fluids