Reading...
Play button
Play button
Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
17 Cards in this Set
- Front
- Back
|
Normal CBC Count, 52% monocytes and lymphocytes. Blood smear shows:
|
Large atypical T lymphocytes. EBV
|
|
|
Elevated AST ALT Alk phos and bilirubin. Confirm diagnosis by:
|
Heterophile antibody in patient's serum. Monospot test EBV
|
|
|
Infectious agent binds to CD21 on b-cell. What are genetic features of infectious agent?
|
Enveopled virus with double-stranded linear DNA. EBV
|
|
|
Pt group most at risk for serious outcome in EBV?
|
african children w/ malaria (who also get Burkitt lymphoma)
|
|
|
EBV in AIDS or HIV
|
CNS lymphoma and Non-hodgkin lymphoma (50% are EBV assicuated) in AIDS, Oral hairy leukoplakia in HIV.
|
|
|
7 year old pt, sore throat, difficulty swallowing, 5 days. Fever, eyrthematous rash on neck, groin, axillae. Red lingual papullae w/ white coat. Exudative tonsillitis. Microbiologic features of this bug?
|
Gram-positive cocci in chains, B-hemolytic on sheep blood agar, catalase negitive. Group A Beta-hemolytic streptococci (GABHS), Strep pyogens causing streptococcal pharyngitis
|
|
|
Virulence factor responsible for rash in GABHS pharyngitis
|
erythrogenic toxin
|
|
|
possible delayed sequelae from strep pyogens pharyngitis
|
acute rheumatic fever
|
|
|
best treatment for strep pharyngitis
|
penicillin G (erythromycin if alg)
|
|
|
9 year old; malase, anorexia, lowgrade fever, delirium. Acute pharyngitis with dirty white membrane. Non-immunized
|
corynebacterium diptheriae
|
|
|
microscopic exam of pharyngeal exudate: numerous small bacteria, metachromatic granules. Specific characteristics of this bug?
|
gram-positive pleomorphic rods; aerobic growth on tellurite agar. C. diptheriae
|
|
|
C. diptheriae produces what for pathology?
|
toxin: bacteriophage-coded A-B toxin
|
|
|
treatment for c. diptheriae
|
antitoxin from horse. Immunization prevents.
|
|
|
13 yr old, sore throat fever, exudative pharyngitis, posterior cervical lymphadenopathy. Conjunctivitis right eye
|
Adenovirus
|
|
|
Adenovirus lab workup
|
Culture from nasopharyngeal specimen: fluroescence antibody staining of infected cells
|
|
|
Adenovirus pulmonary complicaton
|
acute respiratory distress syndrome (serotypes 4 and 7)
|
|
|
adenovirus common source
|
community pool, virus stable to external environments.
|
