Microbiology Systems II Flashcards
newborn meningitis - birth - 6mo
group B strep
E. coli
listeria
child meningitis - 6mo - 6yr
strep pneumo
neisseria meningitidis
h flu type B
enterovirus
meningitis 6yr to 60yr
strep pneumo
neisseria (#1 in teens)
enterovirus
HSV
meningitis +60yo
strep pneumo
gram negative rod
listeria
tx meningitis
ceftriaxone and vancomycin empirically
-add ampicillin if suspect listeria
viral meningitis
enterovirus HSV-2 HIV west nile VZV
HSV-1
encephalitis
meningitis in HIV
cryptococcus
h. flu meningitis
decreased since h. flu vaccine
-often unimmunized children
bacterial meningitis CSF
high pressure
high PMNs
high protein
low sugar
viral meningitis
normal or elevated pressure
high lymphocytes
normal sugar
normal or elevated protein
fungal/TB meningitis
high opening pressure
high lymphocytes
high protein
low sugar
brain abscess infection
MC - viridans or staph aureus
multi abscess
bacteremia
single abscess
contiguous site
ex/ otitis media and mastoiditis > temporal lobe and cerebellum
sinusitis or dental infection > frontal lobe
osteomyelitis infection
staph aureus
MC overall
osteomyelitis sex active
neisseria gonorrhea
sickle cell osteomyelitis
salmonella
staph aureus
prosthetic joint osteomyelitis
staph aureus
staph epidermidis
vertebral involvement osteomyelitis
staph aureus
TB - pott disease
pott disease
TB to vertebrae
cat and dog bite osteomyelitis
pasteurella multocida
IV drug abuse osteomyelitis
pseudomonas
candida
staph aureus
UTI
ascension of microbe - urethra to bladder
to kidney - pyelonephritis
CVA tender, hematuria, WBC casts
pyelonephritis
MC cause UTI
E. coli
green metallic sheen on EMB
UTI in sex active women
staph saprophyticus
3rd MC UTI
klebsiella pneumonia
large mucoid capsule and viscous colonies
UTI bug red pigment
serratia marcescens
struvite stone UTI bug
proteus mirabilis
blue-green pigmented UTI bug
pseudomonas aeruginosa
leukocyte esterase
evidence WBC activity
nitrite test
reduction of urinary nitrates by bacterial species
urease test
ureas-producing bug
proteus, klebsiella
clue cells, fish odor, thin white discharge
bacterial vaginosis
pH > 4.5
tx - metrondiazole
strawberry cervix, frothy grey-green foul smell discharge
trichomoniasis
pH > 4.5
tx - metrondiazole
thick white cottage cheese vaginal discharge, pseudohyphae
candida vulvovaginitis
tx - azoles
ToRCHeS infections
pass from mother to fetus
Toxoplasma gondii Rubella CMV HIV HSV-2 Syphilis
transmission transplacental most cases - or via delivery
hydrops fetalis
parvovirus B19 infection
toxoplasma gondii
TORCHES
cat feces or undercooked meat
classic triad - chorioretinitis, hydrocephalus, intracranial calcifications, blueberry muffin rasrh
rubella
TORCHES
transmitted resp droplets
classic triad - PDA, cataracts, deafness, blueberry muffin rash
CMV
TORCHES
hearing loss, seizures, petechial rash, blueberry muffin rash, periventricular cacifications
HIV
TORCHES
recurrent infection and chronic diarrhea in neonate
HSV-2
TORCHES
encephalitis, herpetic vesicular lesions
syphilis
TORCHES
stillbirth, hydrops fetalis
facial abnormalities, saddle nose, notched teeth, short maxilla, saber shins, CN VIII deafness
newborn, saddle nose, notched teeth, saber shins
mother had syphilis
hand foot mouth disease
coxsackie A virus
oval vesicles on palms and soles
vesicles and ulcers oral mucosa
HHV-6
roseola
asympomatic rose colored macules appear on body after several days of high fever
febrile seizures
affects infants
fifth disease
parvovirus B19
-erythema infectiosum
slapped cheek rash on face
can cause hydrops fetalis in pregnant owmen
rubella virus
german measles
pink coalescing macules - begin at head and move down
fine desquamating truncal rasrh
postauricular lymphadenopathy
strep pyogenes
scarlet fever
erythematous sandpaper rash with fever and sore throat
VZV
chickenpox
vesicular rash on trunk
-spread to face and extremities
lesions of different stages present