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USMLE Step 3 > infectious diseases > Flashcards

infectious diseases Flashcards

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USMLE® Step 1 flashcards
1
Q

best antifungal therapy for neutropenic fever

A

ECHINOCANDINS

  • caspofungin
  • Micafungin
  • Anidulafungin
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2
Q

treatment for staph osteomyelitis

A

6 weeks IV
-Oxacillin or -Nafcillin
MRSA
-vanco,linezolid,ceftaroline or daptomycin

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3
Q

otitis media treatment

A

amoxicillin 7 days

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4
Q

treatment for strep pharyngitis

A

penicillin or amoxicillin

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5
Q

urethritis treatment

A

Ceftriaxone + doxycycline

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6
Q

inpatient treatmetn for PID

A

cefoxitin and doxycycline

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7
Q

PID treatment in penicillin allergic patient

A

Clindamycin and gentamicin

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8
Q

epididimiits in <35-year patient

A

Ceftriaxone + doxycycline

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9
Q

epididimitis in > 35-year patient

A

Fluoroquinolone

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10
Q

chancroid treatament(haemophilus ducreyi)

A

ceftriaxone or oral azythromycin

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11
Q

LGV(chlamydia)

A

doxycycline or azithromycin

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12
Q

most accurate test in primary syphilis

A

darkfield microscopy

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13
Q

treatment for syphilis inpatient allergic to penicillin

A

Doxycycline

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14
Q

Treatment for tertiary syphilis in a patient allergic to penicillin

A

Desensitization if allergic

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15
Q

Cystitis

A

3 days fosfomycin or nitrofurantoin

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16
Q

complicated cystitis

A

7 days of TMP/SMX or ciprofloxacin

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17
Q

perinephric abscess treatmetn

A

quinolone plus staphylococcal coverage

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18
Q

indications for HAART

A

CD4<500
pregnant
needle-stick scenario

19
Q

Check for HLA-B*5701

A

Abacavir

20
Q

NRTI

Class side effect lactic acidosis

A 
zidovudine (anemia)
didanosine(pancreatitis and periferal neuropathy)
Stavudine(pancreatitis and neuropathy)
lamivudine
Abacavir(HLA-B*5701)
Emtricitabine
Tenofovir(renal tox)
21
Q

integrase inhibitors

A

Raltegravir
Elvitegravir
Dolutegravir

22
Q

NNTI

A

Efavirenz
nevirapine
Etravirine
Rilpivirine

23
Q

Protease ihibitor for HIV

Class side effect hyperglycemia and hyperlipidemia

A

navirs

24
Q

needle stick injury (postexposure prophylaxis)

A

ART for a month
2 NNTI + integrase inhibitor
START within 72 h

25
Q

PCP profilaxis

A

TMP/SMX

atovaquone or dapsone if allergic

26
Q

inpatient treatmetn for PID

A

cefoxitin and doxycycline

27
Q

Esquema oficia de AIDS en el embarazo

A

zidovudine and lamivudine

28
Q

PCP treatment

A

IV TMP/SMX
IV Pentamidine if allergic
STEROIDS if pO2<70 or A-a gradient >35

29
Q

MAI treatment

A

Clarithromycin and etambutol

30
Q

Ehrlichia

A

Ixodes
MOrulae in WBC,Dx with PCR
Treat with doxy

31
Q

Babesiosis

A

IXODE
ring cyst in RBC,Dx with PCR
Treat with azithromycin and atovaquone

32
Q

malaria profilaxis

A

Mefloquine(weekly) gives WT prolongation
or
atovaquone/proguanil(daily)

treat with the same medications
ARTESUNATE for severe

33
Q 
coccidioidomycosis treatment
(erythema nodosum, joint pain)
A

itraconazole

34
Q

most common cause of osteomyelitis

A

staphylococcus

-Treat with oxacillin or nafcillin IV for 4-6 weeks

35
Q

most common cause of erysipelas

A

Group A strep, treat with dicloxacillin or cephalexin

36
Q

treatment for cryptococcus

A

amphotericin and 5FC followed by fluconazole

37
Q

most common cause of culture-negative endocarditis

A

Coxiella and Bartonella

38
Q

most common cause of Endocarditis

A

S.aureus and viridans group steptococci

39
Q

Endocarditis empiric treatmetn

A

vango + genta for 4 weeks

40
Q

endocarditis prophilaxis

A

-prostetics valves,unrepaired cyanotic heart disease,previous endocarditis,transplant recipients who develop valve disease

41
Q

procedures that require prophilaxis

A

Dental procedure with bleeding=amoxicillin
Respiratory
Surgery of infected skin=cephalexin

42
Q

treatment for Lyme

A

doxyclycline

Amoxicillin for kids<8 years,pregnancy and lactating woman.

43
Q

treatment for histoplasmosis

A

Ampho followed by itraconazole

USMLE Step 3 (19 decks)

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