infectious Flashcards
anti DNAse B (deoxyribonuclease) titers
for acute strep glomerulonephritis assoc with impetigo
C3 levels in acute post strep glomerulonephritis
low
antibodies to check for post streptococcal infections related to GAS
Anti streptolysin O
Acute cerebellar ataxia is a complication after what infection
varicella
pleomorphic pruritic rash consisting of macules, papules, vesicles on an erythematous base and pustule with associated crusting of older lesions
varicella
most common cause of brain abscess formation in infant less than 4 week
Citrobacter koseri
What is erysipelas
skin lesions from GAS toxin
description of erysipelas rash
more superficial than cellulitis, raised advancing edges sharply demarcated borders and associated lymphadenopathy
Finding on CBC for Chlamydia Trachomatis
peripheral eosinophilia
descrptions of symptoms from Chlamydia Trachomatis
staccato like cough, nasal stuffiness and rales in the absece of wheezing
When does chlamydial conjunctivitis of newborn present
days to weeks after birth
Treatment for chlamydia conjunctivitis or pneumonia
erythromycin PO for 14 days or azithromycin for 3 days
erythromycin given orally in the 1st two weeks of life is associated with what condition
pyloric stenosis
What are 3 phases of Pertussis
Catarrhal
Paroxysmal
Convalescent
Paroxysmal stage of pertussis
dry, intermittent, irritating “Hacking” cough followed by inexorable paroxysms, posttussive emesis/exhaustion, and often and inspiratory “whoop”
bone findings of congenital syphylis
transverse bands of increased density across the metaphyses with patchy areas of bone destruction in the diaphyses
early findings of congenital syphylis
contagious ulcerated cutaneous lesions of palms and soles, mucous patches, condylomatous lesions, generalized lymphadenopathy, splenomegaly, jaundice, hemorrhagic rhinitis
complement levels in syphylis
decreased
electrolyte derangements in fanconi syndrome
hypophos and low levels calcitriol
German measles is what
rubella
Findings of rubella
fever, generalized malaise, HA, sore throat, cough and or coryza. posterior cervial, auricular and suboccipital lymphadenopathy
progression of rubella
rash for 72 hours then spreads to trunk and disappears by 3rd day.
prodrom of rubeola
fever, cough, coryza, conunctivitis, koplik spots
signs of early disseminated lyme disease
aseptic meningitis, uveitis, cranial nerve palsies and carditis
what are birbeck granules
intracytoplasmic inclusion bodies that appear as rod or tennis racquet shaped structures
Birbeck granules are seen with what
langerhans cell histiocytosis
skin lesions in langerhans cell histiocytosis
yellowish brown erythematous with crusting and surrounding petechiae
langerhans histiocytosis can present with what other conditions
seizures, hearing loss, diabetes inspidus and cranial nerve palsies
patients with cyclic neutropenia are at risk for sepsis with which organism
Clostridium septicum
what are symptoms of black widow spider bite
severe cramping wthin 30-60 minutes of the bite
signs of brown recluse spider bite
swelling 2-8 hours after and formation of hemorrhagic vesicle that may become necrotic and eschar in 10 days
findings on peripheral smear of patient with HUS
helmet and burr cells from endothelial injury
which URI virus is associated with hemorrhagic cystitis
adenovirus
triad with disseminated gonococcal infection
tenosynovitis, dermatitis-vesicular and polyarthralgias
treatment for listeria
IV penicillin G or ampicillin
Findings of familial Mediterranean fever
fever, abdominal and testicular pain, swelling of knees and ankles
findings congenital rubella
microcephaly, cataracts and PDA
progression of chlamydia trachomatis genital infection
femoral lymphadenopathy. Primary lesions small painelss papule that turns to ulceration heals. Then painful inguinal and femoral lymph nodes 2-6 weeks after that are unilateral
treatment for lymphogranuloma venerium (C trachomatis)
doxy for 3 weeks or erythro for 21 days
Which STD causes chancroid
Haemophilus ducreyi
what is a chancroid
painful lesion in genital region with inguinal lymphadenitis
sepsis and ketones and urinary resducing substances
galactossemia Not hereditary fructose intolerance
Treatment for cyptosporidium
when Sx greater than 2 weeks. Nitazoxanide
Signs of congenital variclla
aplasia, microcephaly, hydrocephaly, calcifications, microphthalmia, optic atrophy, cataracts, chorioretinitis, limb atrophy and malformations, cicatricial scarring of extremities, hypopigementation
treatment of listeria monocytogenes
amp and gent
teen with symmetric erythematous swelling of hands anf feet- wrist and ankles with papules, petechiae and purpura. what is the organism causing this
parvovirus B19- Papular purpuris gloves and socks syndrome
electrolyte abnormality with rocky mountain spotted fever
hyponatremia
presentation rocky mountain spotted fever
prodromal symptoms 3-5 days then erythematous papular rash peripherally that turns into petechial lesions and moves centrally
treatment for exposure to someone with invasive meningococcal disease
rifampin BID for 2 days
teen greater than 13 years of age with no history varicella vaccination– next step
if no history of natural infection do one dose now and 2nd in 4 weeks
what type of WBCs have an issues in Job’s syndrome (IgE)
neutrophils do not adhere to endothelium so secretion of chemotactic chemokines bring eosinophils to the tissues
What type of lymphocyte is affected in DiGeorge syndrome
T cells due to thymic aplasia
genital ulcer with wright stain showing rod shaped oval organisms within the cytopasm of mononuclear phagocytes
klebsiella granulomatous
chancroid with gram stain showing gram negative coccbacilli in parallel clusters
haemophilus ducreyi
patients with cyclic neutropenia are at risk of what bacterial infection
clostridium septicum
erlichia is present where
south central, south east- Arkansas
anaplasma is located where
northeast and upper midwest
test most useful for acute EBV infection
IgM to the capsid antigen of EBV
treatment for congenital CMV for infant
6 months oral valacyclovir
neonate with microcephaly, intracranial calcifications, hepatosplenomegaly and petechial rash and hepatitis
congenital CMV
first step in management epiglotitis
SECURE airway. not antibiotics first.
cause of watery diarrhea from community pool source
shigella sonei
varicella invasive infection is associated with what secondary bacterial infection
GAS
acute unilateral blindness and history of puppies at home
toxocariasis
suspect HSV in mother and infant just born, when do you start evaluation
24 hours. else could be contamination
pulmonary consolidation, lives in california and has lytic bone lesion on xray- next step in diagnosis
serology for coccidiomycosis
how do you get ascaris lumbricoides
ingestion soil contaminated food
which worm enters by dermal penetration
hook worms- necator americanos
