ID Flashcards
When do diarrheal s/sx occur with toxigenic bacteria vs invasive bacteria? Which has systemic symptoms?
Toxigenic= abrupt Invasive = gradual with systemic s/sx
What is the classic food association for: staph aureus
Eggs/mayo
What is the classic food association for: bacillus cereus
Fried rice
What is the classic food association for: travel’s diarra
ETEC
What is the classic food association for: clostridium perfringens
Meat/poultry
What is the classic food association for: scromboid
what sort of rxn occurs?
Dark meat fish
histamine rxn
What is the classic food association for: ciguatera
what sort of rxn occurs
Carnivorous fish
Neuropathy
What is the classic food association for: salmonella
undercooked eggs/chicken
What are the s/sx of shigella?
Febrile, dysentery
What is the classic food association for: campylobacter
chicken
What is the classic food association for: yersinia
Farm animals
Which causes of diarrhea get abx?
Invasive causes–with systemic s/sx
When should you never give abx for diarrhea?
If kids or elderly with hematochezia (concern for HUS)
What is the classic food association for: vibrio parahaemolyticus?
Undercooked seafood
What is the classic food association for: EIEC
raw ground beef
Are there any sensory symptoms with botulinum?
No-pure motor
What are the D’s for the s/sx of botulinum poisoning?
Diplopia Dilated pupils Dry mouth Dysarthria Dysphoria Descending paralysis
Are there autonomic s/sx with MG?
No
How do the s/sx of tick paralysis differ from botulinum?
Ascending paralysis without bulbar s/sx
How does LGV present?
Vesicular lesion over the genitals with inguinal LAD
What are the classic skin lesions with disseminated gonnococcus?
Gunmetal gray small pustules
Who gets PEP for meningococcemia? What is the treatment?
- If close enough to get droplets
- Rifampin, cipro, ceftriaxone (1 of these)
Who gets infected by MAC and what is the manifestation of this?
AIDS or immunosuppressed pts
Lung disease, bone marrow suppression
Who gets infected by mycobacterium marinum and what is the manifestation of this?
Skin infections in fisherman, fish handlers
What are the physical manifestations of infx with Mycobacterium kansasii?
Lung disease
What are the physical manifestations of infx with Mycobacterium ulcerans?
Skin ulcers
What is the Ghon complex associated with TB? Ranke complex?
- Calcified primary TB complex
- above + calcified hilar lymph nodes
Which TB drug causes orange body secretions?
Rifampin
Which TB drug causes optic neuritis?
Ethambutol
Diffuse erythroderma + fever + hypotension in an ill appearing young menstruating female = ?
STSS
What is the classic vector for histoplasmosis? Where is it classically seen?
bird or bat poop in the mississippi river valley
What is the treatment for toxoplasmosis?
Pyrimethamine
Which type of malarial parasite causes severe infection and can lead to encephalopathy/cerebral edema?
Falciparum
What are the stains that are used to diagnose malaria?
Giemsa or wright stain
Thick and thin smears
What is ehrlichiosis?
Tick borne illness that causes flu-like illness +/- rash
What is the treatment for ehrlichiosis?
Doxycyline
What are the s/sx of hantavirus infection?
ARDS picture
Thrombocytopenia
What is the treatment for hantavirus?
Supportive care
At what CD4 count does TB become a concern?
less than 500
At what CD4 count does PCP pneumonia become a concern?
Less than 200
At what CD4 count does Toxoplasmosis become a concern?
Less than 100
At what CD4 count does MAC become a concern?
Less than 50
At what CD4 count does Cryptococcus become a concern?
Less than 100
What infections become a concern when CD4 count falls below 500?
TB
What infections become a concern when CD4 count falls below 200?
PCP pneumonia
Histoplasmosis
What infections become a concern when CD4 count falls below 100?
Toxoplasmosis
Cryptococcus
What infections become a concern when CD4 count falls below 50?
MAC
When should PEP start for HIV
Within 72 hours of exposure
What are the classic symptoms of PCP pneumonia?
DOE
Dry cough
At what PaO2 level are steroids indicated for PCP pneumonia?
Less than 70
What are the first and second line agent for PCP pneumonia?
Bactrim
Pentamadine
What is the major side effect of pentamidine?
Hypoglycemia
What lab test is elevated with PCP pneumonia?
LDH
Do rabbits carry rabies? Rodents?
Negative
How does the rahs begin and spread with roseola?
Trnk then goes to head and neck
What are the three Cs of measles prodrome?
Cough
Coryza
Conjunctivitis
How does the rash spread and progress for measles?
Head down
What happens to the color of the rash with measles?
Turns from red to brown
What are the three types of anthrax disease?
Cutaneous
Gastrointestinal
Pulmonary
What is the treatment for anthrax?
Doxy or cipro
What are the s/sx of cutaneous anthrax?
Black eschar that forms
What type of pneumonia can develop with anthrax?
Mediastinitis
Can anthrax be transmitted from person to person?
No–must inhale spores
