Infectious Diseases Flashcards
red eye with purulent discharge, tense edema of eyelids with marked chemosis; incubation period 2-5 days
Neisseria gonorrhea
DOC: Ceftriaxone 50mkday for 1 dose
mild to severe swelling of eyelids with copious purulent discharge; incubation period 5-14 days
Chalmydia trachomatis
DOC: Erythromycin 50 mkday every 6 hours for 14 days
Days 5-18: edema and erythema of eyelids, purulent discharge, pannus formation, endophthalmitis
Pseudomonas aeruginosa
DOC: systemic antibiotics; Gentamicin eye ointment
red itchy eyes, thin exudate, pain and photophobia, +/- cough and colds
Adenovirus
red eyes, (+) pus
staphylococcus
red eyes, (+) pus, inculsion bodies in scrapings
Chlamydia
inturned eye lashes, corneal scarring and blindness
Chlamydia
Stye
Staphylococcus
Bilatera eyelid swelling, eosinophils, muscle pain, hx of infection
Trichinella
unilateral inflammation at bite site around eye or mouth, hx of travel to Mexico or south america
t. cruzi
All cestodes are treated with Praziquantel except
Echinococcus granulosus (Albendazole)
All trematodes are treated with
praziquantel
Tx for Ascaris, Necator, Capillaria
Albendazole
Tx for Trichuris
Mebendazole
Tx for Enterobius
Pyrantel pamoate
Tx for Strongyloides
Ivermectin
Tx for Wuchereria and Brugia
DEC
Tx for Trichinella
Thiabendazole
Retinopathy with keratitis in a newborn or a young child; mother has hx of drug abuse
CMV
DOC for Ritter disease
Oxacillin
If MRSA, start Vanco
Red, raised butterfly rash, in appearance with derma pain and rapid spread
Erysipelas
GAS- Strep pyogenes
malignant pustule
- pustule to dark red fluid filled to necrosis of black eschar
- Dx and Tx?
Bacillus anthracis
anthrax
- Ciprofloxacin + Clindamycin
Target eye lesion
Bull’s eye
-fever, headache, rash border, bite site
-Dx and Tx?
Borrelia burgdorferi
(Lyme disease)
-one of the ff: Doxycycline (best CNS penetration), Amoxicillin or Cefuroxime
Tx of M. marinum
Clarithromycin + Ethambutol
Tx of Actinomyces
high-dose IV Penicillin
Nocardiosis
Trimethoprim sulfa
-first line tx
Hemorrhagic mediastinitis associated with
Bacillus anthracis
Hx of animal bite; cellulitis with lymphadenitis
-Dx and tx?
Pasteurella
-Tx: amoxicillin/clavulanic acid
Hx of cat bite or cat scratches or no hx of bite but with pet kitty; lymohadenopathy with stellate granulomas; causes cat scratch dse
-dx and tx?
Bartonella hensae
-self-limited but may give azithromycin
Hx of shallow puncture wound through tsinelas or rubber shoes
Pesudomonas
How is diphtheria diff from strep throat?
relative lack of fever, non-exudative throat
inflamed tonsils or pharynx, purulent, fever
Strep tonsillopharyngitis
white papules with red base on posterior palate & pharynx
Herpangina
Coxsackie viruses
purulent tonsils, fatigue, LN
infectious mononucleosis
EBV
low-grade fever with gradual onset of membranous nasopharyngitis; bull-neck LN
Diphtheria
finely popular, eryhtematous eruption producing a bright red discoloration of the skin, which blanches on pressure, more intense along the creases of the elbows, axillae and groin; skin has goose pimple appearance and feels rough. After 4 days, rash begins to fade, and followed by desquamation
scarlet fever
GAB-S
causes infectious arthritis in all ages except between 15-40
S. aureus
causes infectious arthritis in 15-40 yo, sexually active and promiscuous
N. gonorrhea
causes infectious arthritis in prosthetic joint
S. epidermidis
causes infectious arthritis among px following GIT infection few weeks ago
Reiter’s syndrome
causes osteomyelitis among adults, children, infants without major trauma or special conditions
Staphylococcus
causes osteomyelitis among neonates < 1yo
Staphylococcus
causes osteomyelitis in sickle cell anemia patients
Salmonella cholerasuis or enteritica
causes osteomyelitis in px with hx of trauma
Pseudomonas
diff rash of rickettsia ricketsii vs prowazekii
ricketsii: includes palms and soles
prowazekii: spares palms and soles
maculopapular rash + cough, coryza, and fever
Measles/ Rubeola
maculopapular rash + posterior cervical, cervical or auricular nodes
German measles or rubella
maculopapular rash + slapped cheek looking then spread to trunk with central clearing
erythema infectiosum or 5th disease
parvovirus B19
maculopapular rash + abrupt onset of fever with URTI for 3-4 days, fever disapperans and rashes appears on trunk and spread
Roseola or 6th disease
preceded by rapid onset of fever, myalgia, ocular pain, hypesthesia; rashes blanch on pressure
Dengue fever
Nagayama spot
roseola
