ID Flashcards
gastroenteritis after salad consumption
staph aureus
Food associated with staph (5)
Dairy products poultry egg product meat salad with mayonnaise
Most commonly food tested in USMLE for staph (3)
Potato
macaroni
sald with mayonnaise in it
cause of diarrhea induced by staph
preformed toxin
patient on anti TB develops tingling of extremities
peripheral neuropathy caused by izoniazid
treatment of peripheral neuropathy induced izoniazid
pyridoxine 100 mg
prevention of neuropathy
pyridoxine 10 mg
malaria with fever q 48 h(2 Syllables)
ovale
vivax
Malaria with fever q 72 h
malariae
Malaria without periodicity
P falciparum
what to prevent in transplant patient
opportunistic infection
which opportunistic infection should be prevented in transplant patient?(5)
PCP CMV Hep B pneumonia influenza
drug preventing PCP
TMP-SMX
drug preventing CMV (2)
valacyclovir
ganciclovir
Which bugs TMP-SMX help to prevent(5)
PCP Toxo Nocardia Pneumonia UTI
screening test for HIV
hiv serology test by elisa
confirmatory test for HIV test
western blot
Travelers diarrhea persisting more than 2 weeks (5)
C parvum cyclospora cystoisospora microsporidia giardia
Patient returning from eastern europe develops watery stools,no leucocytes and no blood in it
cryptosporidium parvum
Travelers diarrhea and short term course diarrhea? (7)
rotavirus norovirus salmonella shigella campylo bacter ETEC entero toxigenoic EPEC Entero pathogene
Travelers diarrhea and bloody spell (3)
salmonella
shigella
campylobacter
Mechanism of ostomyelitis in diabetics patients with foot ulcer?
contiguous spread
Travelers diarrhea and pseudoappendicitis
campylobacter and yeresina
Rx of PCP
TMP-SMX
prednisone
when giving prednisone with the lower risk in PCP (2)
PAo2 35
PCP treatment/prophylaxis (4)
Dapsone (prophylaxis only)
Pentamidine
atavoquone
TMP-SMX
side effect of TMP-SMX(4)
HyperK+
rash
increase transaminase
neutropenia
side effect of pentamidine (4)
hyperK+
Hypotension
increase transaminase
nephrotoxicity
side effect of dapsone
Hemolytic anemia(G6PD)
side effect of primaquine (2)
Hemolytic anemia
methemoglobin
Bugs causing cutaneous larva migrans
ancylostoma braziliense
People at risk of cutaneous larva migrans (2)
sand boxes
activity on sandy beaches
Manif of cutaneous larva migrans(3)
pruritic lesion on hand, legs
papules
erythema
Most effective way to decrease risk of infection in bladder catheterization
intermittent catheterization
UTI and high urine PH >7
proteus mirabilis
How proteus mirabilis causes high PH
urease producer bug
urease cleaves urea to CO2 and ammonia
ammonia bonds to H+—>ammonium
risk with proteus infection (2)
high unrine PH
risk of struvite
Urease producing bacteria (6)
klebsiella morganella uraplasma urealyticum pseudomonas providencia staph aureus
Risk of infection by urease producing bacteria
indwelling catheter
diag of febrile neutropenia
fever
Neutrophil < 1500
risk in febrile neutropenia (2)
infection
often pseudomonas
Empiric treatment of febrile neutropenia(3)
cefepime or ceftazidime
meropenem or imipenem
or combination aminoglycoside plus antipseudomonal antibio
clostridium difficile colitis
diarrhea following by antibody use
fisrt step in clostridium difficile treatment?
stool toxin testing
toxin produced by C difficile (2)
Enterotoxin A
Enterotoxin B
action of enterotoxin A
Watery diarrhea
Action of enterotoxin B
cell necrosis
complication of pseucolitis membranous
Megacolon
Dx test of pseudocolitis membranous (2)
sigmoidoscopy
PCR
Sigmoidoscopy of pseudocloitis membranous
pseudomembranes
PCR of pseudocloitis membranous
toxin genes
Empiric antibody for meningitidis in eldery people > 50 ans (3)
Cefepime, ceftriaxone or cefotaxime +
vancomycin +
ampicillin
drugs used in pseudomembranous colitis? (3)
Metro or
vancomycin or
bugs causing meningitidis in 2-50 ans(2)
S pneumonia
N meningitidis
H influenzae
empiric tx of meningitidis in 3mon - 50yrs ans (3)
vancomycin +
ceftriaxone or cefotaxime
bugs causing meningitidis > 50 ans(3)
S pneumonia
N meningitidis
L monocytogenes
bugs causing meningitidis in immuno compromised patient?(4)
S pneumonia
N meningitidis
L monocytogenes
gram negativebacilli (P aeruginosa)
empiric Tx of meningitidis in immunocompromised patient (3)
ceftazidime +
vancomycin +
ampicillin
bugs causing meningitidis after neurosurgery or skull penetrating trauma (3)
staph aureus
staph with coagulase negative
gram negative rods
treatment of meningitidis after neurosurgery or skull penetrating trauma (2)
vancomycine
cefepime
Manif of babesiosis?
Malaria like symptom
area in the US with babesiosis?(2)
Northeastern
Babesiosis
cause of babesiosis?(2)
tick bite
ixodes
rx of babesiosis?(2)
quinine -clindamycin or
atovaquone - azythromycin
cause of infectious upper respiratory illness(3)
influenza
viral upper respiratory syndrome
streptococcal pharyngitis
clue for influenza
systemic symptom prevails
clue for viral respiratory syndrome(2)
rhinorrhea
coryza prevails
indication of treatment for influenza(3)
rx must be initiated within 48 h
no improvement after 48 h
risk of complications
patient with influenza presenting after 48 h of symptoms
rx?
symptomatic treatment
drug use in the treatment of influenza?(2)
oseltamivir
zanamivir
gardner with painless ulcer on finger?
sporotrichosis
bug causing sporotrichosis?
sporotrix shenkii
Rx of fight bite?clench fist injury
bactoclav
rx of bite dog
bactoclav
watery or bloody diarrhea after ingestion of seafood?
vibrio para hemolyticus
seafood infected by vibrio parahemolyticus?(2)
oyster
shrimp
bugs causing cat scrath fever?
bartonella henselae
rx of cat scratch fever?
azythromycin pendant 5 jours
Dx of cat scratch fever?(2)
antibody
warthy starry stain positive
risk factor for endocarditis
IV drug user
clue for endocarditis in IV drug user(2)
fever
holosystolic murmur in tricuspid
valve invoved in endocarditis in IV drug user
Tricuspid
rx of endocarditis in IV drug user?
vancomycin
why vanco in so used in endocarditis?(3)
coverage of
staph aureus
streptococci
enterococci
risk of cervico actinomycosis?(5)
after dental procedure poor oral hygiene diabetics malnutrition local tissue damage from malignancy or irradiation
clue for cervico facial actinomyosis?
Mandibulaire abces after dental procedure
Rx of cervico facial actinomycosis?
penicillin
bug with sulfur granules
actinomycosis
Micro characteristic of actinomyces israeli(2)
gram +
branching rods
Work up nof infectious mono
Heterophile antibody
work up of mono if infectious mono if heterophile antibody is negative?
EBV specific antiboby
IV drug user and pulmonary findings
Infective endocarditis complicated by septic pulmonary emboli
Dx of Mycobacterium leprae
hypopigmented plaque without sensation
zone of predilection of mycobacterium leprea
forearm
geographic area of predilection of mycobacterium leprea
asia
dx of myco leprae and finding(2)
skin biopsy
acid fast bacilli
bugs causing shingles
herpes zoster
dermatomes most commonly involved in shingles
T3
L3
Rx of choice of shingles
valacyclovir
chicken pox quid
varicella
what to do in patient developping endocarditis with strep bovis(strep gallotycus type 1)
rule out colon cancer by colonoscopy
clue for CMV diarrhea in hiv patient(2)
colonic ulceration
basophilic intracystoplasmic inclusion
HIV patient with bloody diarrhea with normalstool examination?
colonoscopy to rule out CMV infection
quid of owl’s eye effect?(2)
eosinophilic intranuclear inclusion and
basophilic intracystoplasmic inclusion
meaning owl’s eye effect?
CMV
Rx of CMV(2)
ganciclovir
foscarnet
cause of kaposi sarcoma?
HHv-8
Quid of 3 phases of trichenella(round worm)(3)
intrestinal
systemic with hypersensitivity
Muscular
Quid of systemic phase?(hypersensitivity phase)(3)
splinter hemorrage
chemosis
retinal hemorrage
what happened in muscular phase?
Muscular pain
reservoir of trichinella
undercooked pork
Triad for trichenellosis?(3)
Myositis
periorbital edema
eosinophilia
chemoprophylaxis for malaria
consider if the zone has Plasmodium F
if Plasmodium F is susceptible or resistant
area with resistant Plamsdodium F(2)
subsaharan africa
southern southeast Asia
prophylaxis for resistant P falciparum(3)
atovaquone plus proguanil
dox
mefloquine
prophylaxis for zone susceptible P falciparum?
chloroquine
area without falciparum(3)
south america
mexico
korean peninsula
drug used in prophylaxis in zone with no falciparum
primaquine
prohylaxis for malaria in pregnant women?
mefloquine
clue for coociiodomycosis?(2)
pulmonary symptom
erythema nodosum
endocarditis with heart valve damage?
Mitral valve prolapse
mitral regurgitation
bugs most commonly involved in damaged heart valve
strep mutans
step mutans treatment
vancomycin
gold standard for endocarditis dx?
transesophageal echo
pyelonephitis rx in diabetics(2)
ceftriaxone pdt 48-72H
switch by TMS or ciprox
pyelonephritis in patient without diabetes?
ciprox or
TMS
duration of oral rx of pyelonephritis
10 a 14 jours
rx of pyelonephritis in pregnant women? (2)
ceftriaxone
plus ou moins genta or
aztreonam
risk factor for toxic shock syndrome?(4)
tampon
nasal package
post surgery(sinorhinoplasty)
infectiuos sinusitis
cutaneous manif in toxic shock syndrome
macular erythroderma like sunburn
clue important for TSS
thrombocytopenia<100 000
quid of TSS toxin
superantigen activating T cells
pig farmer with seizures
neurocysticercosis
quid of T solium
it’s a tape worm
what’s the cause of neurocysticercosis?
egg ingestion of T solium
if you eat the meat ot the PIG what will happen?
you will develop the intestinal T solium
chronic cough of immunocompromised patient and presence and presence of gram + partially acid fast organism branching rods?
nocardia
rx of nocardia?
TMS
cause of pulmonary cavitation?(6)
TB Nocardiosis atypical mycobacterium anaerobes gram negative rods aspergilosis
First disease to check in front of neck adenopathy with sore throat?
Mono infectious
second disease to check in front of neck adenopathy with sore throat?
hiv
when Mono infectious patient develops rash
when antibio is given
the most common cause of of pneumoniae in immunocompromised patient (hiv)
pneumococcus
why pneumococcus is so common in hiv patient(2)
because of failure of humoral immunity
encapsulated germs cause infeection easily
joint pain in polyarticular symmetric in school teacher in daycare center
parvovirus B19
dx of Parvovirus B19 in immunocompetent individuals
IGM B 19