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UWorld step 2 > infectious disease uworld > Flashcards

infectious disease uworld Flashcards

1
Q

8 year, 2 months ago went to ecuador, papilledema, crackles over right middl lobe, csf: Very low glucose, elevated protein, and high lymphocytes

A

Tuberculosis
onset 2-6 mo after infection, and VERY low glucose
spreads hematogenously

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2
Q

unilateral conjuctivits with ipsilateral preauricular lymphadenopathy, after going hunting

A

Francisella tularensis

also: bartonella henselae and HSV simialr sxms

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3
Q

pt comes in with confusion, hypotension, acidosis (low bicarb), and foot eschar
what to do within first hour?

A

IV antibiotics

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4
Q

neonate switches to cow- milk formula, then gets irritable and hypothermic, jaundice, weak suck
mnagement?

A

neonatal sepsis
listeria
do BLOOD, Urine, CSF cultures
tx: ampicillin and gentamicin

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5
Q

pediatric septic arthritis

A

age < 3 mo: staph aureus, GBStrep, gram neg bacilli

age > 3 mo: staph aureus, GAstrep

joint drainage and debridement

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6
Q

trimethoprim-sulfamethoxazole in 3rd trimester

A

risk of neonatal kernicterus

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7
Q

pylenephritis and pregnant tx

A

ceftriaxone or cephalexin

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8
Q

19M pharyngitis, macular rash, interstitial markings right sided pleural effusion, persistent dry cough

A

Mycoplasma Pneumonia

strep pneumo is lobar (not interstitial) with productive cough and fever

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8
Q

19M pharyngitis, macular rash, interstitial markings right sided pleural effusion, persistent dry cough

A

Mycoplasma Pneumonia

strep pneumo is lobar (not interstitial) with productive cough and fever

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9
Q

UTI with ph>8

A

PROTEUS MIRABILIS (urease producing)
struvite stones (magnesium ammonium phosphate)

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10
Q

Lyme disease tx in prego’s

A

nonpregos: doxycycline
pregos: oral amoxicillin

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11
Q

bulging TM, middle ear effusion

A

acute otitis media

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12
Q

Neisseria meningococcal vaccines

A

age: 11-12 primary
age 16: booster

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13
Q

6y/o boy with 10 day history of persistent nasal discharge yellow mucus, congestion, maxillary sinuses are tender to palpation

A

acute bacterial rhinosinusitis
d/t nontypeable Haemophilus Influenza strep Pneumo, moraxella catarrhallis

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14
Q

15yo with 18hrs of fever, vomitting, resistance to passive neck flexion, several petechiae csf: low glucose, high protein neutrophils

A

Meningococcal meningitis

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15
Q

Mild cough, rhinitis, with more severe cough, low grade fever, rib pain

A

Bordetella Pertussis
gram neg coccobaccilli
give azithromycin to pt and family

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16
Q

bilateral pulmonary infiltrates on xray, fever, non-productive cough

A

mycoplasma pneumonia
tx : azithromycin or fluooquinolone

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17
Q

infective endocarditits
what valve
tx

A

mitral regurgitation
vancomycin

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18
Q

lyme disease ppx criteria

A

tick attached for more than 36hours

if not then no need for ppx

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19
Q

reheated rice

A

bacillus cereulus – ingested preformed toxin

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20
Q

osteomyeolitis with sickle cell pt tx

A

ceftriaxone + vancomycin

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21
Q

infective endocarditis in old man who just had a UTI pyelonephritis

A

enterococci

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22
Q

nonbullous impetigo: honey crusted
tx

A

mupirocin

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23
Q

3 days of n/v/headache, and maculopapular rash with petechiae on trunk, extremities, HANDs, wrists, feet

A

rickettsia – thrombocytpoenia, hyponatremia, elevated LFT’s
tx: doxycyline

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24
dental infection with small yellow graunles, filamentous gram positive rods with rudimentary branching
actinomyces israelli tx: penicillin 2-6mo
25
high fever, mucus/blood in diarrhea, loose stools, 2 year old, seizures
shigella sonnei | day cares or schools -- low infectious dose required for person to perso
26
papule at scratch site nontender, with regional lymphadenopathy has pets
bartonella henselae -- cat scratch
27
low grade fever, oropharynx erythematous, no exudates, scattered crackles with rhonchi in both lungs
mycoplasma pneumoniae
28
most common pathogens for bronchiectasis in cystic fibrosis (AR) UNDER AGE 20
staphylococcus aureus
29
high grade fever, after a cruise, cxr bilateral interstitial infiltrates, hyponatremia
legionella tx: fluoroquinolones
30
nonpruritic nonpainful skin lesion, 4cm well cicumscribed, hypopigmented patch, no sensation to pinprick dx
leprosy full thickness biopsy of skin lesion dapson and rifampin
31
< 1 mo hypothermia, lethargy, leukopenia pathogen?
Group B streptococcus
32
20F with high fever sudden onset, myalgias, n/v myalgia, confusion, difficulty concentrating, shock-like sxms non-contrast ct unremarkable next best step
meningococcal meningitis next step lumbar puncture tx: ceftriaxone for close contacts too complications: adrenal hemorrhage (waterhouse)
33
back pain with fever, next step
MRI
34
fine, erythematous papular rash with rough texture, blanches with pressure
scarlet fever d/t strep pyogenes dx: Rapid strep antigen/ throat culture tx: penicillin
35
prosthetic joint infection < 3 mo > 3 mo
within three months usually staph aureus or pseudomonas after three months usually coagular negative staph epidermidids propionibacterium enterococci (if uti)
36
wood splinter injury on farm, painful stiff neck, muscles of neck tense, unable to open mouth next step?
no additional testing tetanus
37
pt with small papule with an area of central ulceration, gram neg coccobacilli
tularemia
38
purple pedunculated lesions on teh face and extremities that are friable and bleed easily with palpation CD4 <50
39
rural massachusetts with av block
40
branching filamentous rods partially acid0fast nodular or cavitary lesions in upper lobes
41
rapidly starting sxms 12hrs -- painless red macules that turn indurated pustules/bullae, with punched out gangrenous ulcers
ecthyma gangrenosum -- pseudomonas aeruginosa -- gram neg
42
HIV VACCINES
43
44
syphillis treatment
45
diarrhea hiv
46
esophagtis hiv
47
heterophile antibody test rash after amoxicillin tonsilitis **with exudates
48
wart like lesions + bone lytic lesions
49
sabraoud agar india stain ink encapsulated yeast
50
51
acute febrile illness with malaise and AMS, arkansas, leukopenia, elevateed LFT's lactate dehydrogenase
52
odynophagia and dysphagia HIV
53
noncaseating granuloma with pt from rural farm mississippi hilar/mediastinal lymphadenopathy
dimorphic fungus soil contamination by bird bat dropplings | granulomatous pulmonary: TB, blastomycosis, histoplasmosis
54
HIV cd4< 150; hilar mediastinal lymphadenopathy,
55
bloody diarrhea + liver cyst abscess : fever RUQ pain, elevated LFT's ALK phos
56
bacterial meningitis drugs
57
diabetes + nasal symptoms, opacification and body erosion on right maxillary sinus, local necrotic spread
58
n/v/papilledema/ and cystic lesion in 4th ventricle ate wild pork meat
59
ppx for pneumocystis pneumonia (pt had solid organ transplant)
trimeth-sulfameth for 6-12 mo after transplant
60
bilateral diffuse interstitial infiltrates in setting of immune compromised (HIV/TRANSplant) elevated LDH, dry cough, fever, acute resp failure
Pneumocystis pneumonia or CMV do a bronchoalveolar lavage
61
mild painful pruritic papule at site of inoculation, that later gets ulcerated and has odorless nonpurulent discharge with proximal lymphatic chain (landscaper)
decaying soil
62
toxoplasmosis give bactrim for toxoplasmosis and pneumosystis ppx until cd4 > 200 for 3 months
63
airborn precautions

UWorld step 2 (16 decks)

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