Infectious Disease Flashcards Preview

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Flashcards in Infectious Disease Deck (43):
1

4 s/sxs of streptococcal pharyngitis

Fever, pharyngeal erythema, tonsillar exudate, lack of cough

2

Non-suppurative complication of streptococcal infxn that is not altered by tx of 1˚ infxn

Postinfectious glomerulonephritis

3

Asplenic pts are particularly susceptible to these organisms

Encapsulated organisms: pneumococcus, meningococcus, Haemophilus influenzae, Klebsiella

4

# of bacteria on a clean-catch specimen to dx a UTI

10^5 bacteria/mL

5

Which healthy population is susceptible to UTIs?

Pregnant F. Tx this group aggressively bc of potential complications.

6

Pt rom California or Arizona presents with fever, malaise, cough, and night sweats. Dx? Tx?

-Dx: coccidiomycosis
-Tx: amphotericin B

7

Nonpainful chancre

1˚ syphilis

8

"Blueberry muffin" rash is characteristic of what congenital infxn?

Rubella

9

Meningitis in neonates: Causes? Tx?

-Causes: GBS, E. coli, Listeria
-Tx: gent and amp

10

Meningitis in infants: Causes? Tx?

-Causes: Pneumococcus, meningococcus, H. flu
-Tx: cefotaxime and vanco

11

What should always be done prior to LP?

Check for increased ICP; look for papilledema

12

CSF findings: (L) glucose, PMN predominance

Bacterial meningitis

13

CSF findings: nl glucose, lymphocytic predominance

Aseptic (viral) meningitis

14

CSF findings: numerous RBCs in serial CSF samples

Subarachnoid hemorrhage (SAH)

15

CSF finding: increased gamma globulins

MS

16

Initially presents with a pruritic papule with regional LAD; evolves into a black eschar after 7-10 days. Tx?

Cutaneous anthrax. Tx with pen G or cipro.

17

Findings in 3˚ syphilis

Tabes dorsalis, general paresis, gummas, Argyll Robertson pupil, aortitis, ao root aneurysm

18

Characteristics of 2˚ Lyme dz

Arthralgias, migratory polyarthropathies, Bell's palsy, myocarditis

19

Cold agglutinins

Mycoplasma

20

24 yo M presents with soft white plaques on his tongue and back of his throat. Dx? W/u? Tx?

-Dx: candidal thrush
-W/u: include HIV test
-Tx: nystatin oral suspension

21

Begin PJP prophy in HIV+ pt at what CD4 count? Mycobacterium avium-intracellulare (MAI) prophy?

-PJP: ≤200 (with TMP-SMX)
-MAI: ≤50-100 (with clarithromycin/azithromycin)

22

RFs for pyelonephritis

Pregnancy, vesicoureteral reflux (VUR), anatomic anomalies, indwelling catheters, kidney stones

23

Neutropenic nadir post chemo

7-10 days

24

Erythema migrans

Lesion of 1˚ Lyme dz

25

Classic physical findings for endocarditis

Fever, heart murmur, Osler's nodes, splinter hemorrhages, Janeway lesions, Roth's spots

26

Aplastic crisis in sickle cell dz

Parvovirus B19

27

Ring-enhancing brain lesion on CT with szs

Taenia solium (cysticercosis)

28

Organism: branching rods in oral infxn

Actinomyces israelii

29

Organism: painful chancroid

Haemophilus ducreyi

30

Organism: dog or cat bite

Pateurella multocida

31

Organism: gardener

Sporothrix schenckii

32

Organism: pregnant F with pets

Toxoplasma gondii

33

Organism: meningitis in adults

Neisseria meningitidis

34

Organism: meningitis in elderly

Strep pneumo

35

Organism: alcoholic with PNA

Klebsiella

36

Organism: "currant jelly" sputum

Klebsiella

37

Organism: infxn in burn victims

Pseudomonas

38

Organism: osteomyelitis from foot wound puncture

Pseudomonas

39

Organism: osteomyelitis in a sickle cell pt

Salmonella

40

55 yo M who is a smoker and heavy drinker presents with a new cough and flu-like sxs. Gram stain: no organisms. Silver stain of sputum: GNRs. Dx?

Legionella PNA

41

Middle-aged M presents with acute-onset monoarticular jt pain and b/l Bell's palsy. Likely dx? How did he get it? Tx?

-Dx: Lyme dz
-Ixodes tick
-Tx: doxycycline

42

Pt develops endocarditis 3 weeks after receiving a prosthetic heart valve. What organism is suspected?

S. aureus or S. epidermidis

43

3 MCC of fever of unknown origin (FUO)

Infxn, CA, autoI dz