ID Flashcards

1
Q

Etiology of Kaposi sarcoma

A

HHV-8

typically regresses with HART

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2
Q

What abx should you start for neutropenic fever?

A

Need an anti-pseudomonal agent (cefepime, meropenem, pip-tazo)
ANC < 1500

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3
Q

Organisms in Strep veridians

A
Strep mutans
Strep snaguinis
Strep mitis
Strep sobrinus
Strep milleri
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4
Q

What is the PNA vax schedule for chronic liver disease, heart dz, DM, smokers, pts?

A

PPSV23 once, then revax with PCV 13 and PPSV23 at 65 y/o

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5
Q

What is the PNA vax schedule for adults over 65?

A

PCV13 followed by PPSV23

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6
Q

HIV pt with RUL PNA x months with B syx

A

TB reactivation

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7
Q

Pt on Isonazid develops mildly elevated LFTS (<100). Now what?

A

Nothing. This often ocurs within a few weeks of tx. Liver Injury is usually self limited

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8
Q

Landscaper and cat owner develops papule over the hands w/o lymphadenopathy

A

Sporothrix schneckii - local papule that ulcerates and drains nonpurulent odorless fluid. Develops proximal lesions along the lines of lymphatic drainage. Systemic spread is rare. Tx - itraconazole
If LAN present - Bartonella

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9
Q

PPD is + in HIV when?

A

> 5mm

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10
Q

Recent tick bite
Febrile illness
Leukopenia and/or thrombocytopenia
elevated LFTs

A

Ehrlichiosis
Tx - doxycycline
Seen in the south

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11
Q

What needs to be added for prophylaxis for a HIV + with CD4 count < 50

A

Azithromycin (mycobacterium avum)

Non specific cough, fever, weight loss

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12
Q

abx regimen for suspected bacterial meningitis in immunocompromised

A

Cefepime + vanc + ampicillin

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13
Q

HIV + can receive live vax if CD4 count is?

A

> 200

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14
Q

Those receiving TNF alpha inhibitors should be cautious about

A

Live vax

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15
Q

IVDU presents with chest CT revealing multiple nodular lesions w/ small cavities. Etiology?

A

Staph aureus vegetations breaking off of the Tricuspid valve

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16
Q

HIV +, CD4 <100
Febrile wasting infection
pulmonary (DOE, cough), oral ulcers, lymphadenopathy, pancytopenia

A

Dissiminated Histoplasm
Mycosis of central and midwester US
Spread in bat or bird droppings
Dx - Sr or Ur Histoplasma Ag

17
Q

Recent travel to Carribbean
symmetric polyarthralgias
maculopapular rash on limbs, trunk
lymphopenia, thrombocytopenia

A

Chikungunya fever
Mosquito borne
Tx - supportive

18
Q

Severe sore throat, drooling, unable to swallow d/t pain in an adult

A

H. flu - suspect unvax