Infectious Disease Flashcards
What treatment for latent TB resistant to Isoniazid?
Rifampin (4-6 months)
What two organisms to consider in pneumonia in Cystic fibrosis patient?
Pseudomonas and Staph. aureus
What antibotics are needed in treating pneumonia in cystic fibrosis patient?
one for MRSA
two for pseudomonas
What CD4 level is PCP common in HIV?
<200/mm3
What CXR feature does PCP have in HIV?
interstitial pulmonary infiltrate
How to diagose PCP in HIV?
Induced sputum and bronchoalveolar lavage
What organism to consider in osteomyelitis of SCD children?
salmonella
Staphy aureus
What antibotics are needed in osteomyelitis of SCD?
One 3rd Gen cephalosporin for salmonella
One abx for S. aureus (MRSA vs MSSA)
How to treat onychomycosis?
Oral terbinafine > oral griseofulvin
What are 1st and 2nd line treatment of bacterial sinusitis?
- Augmentin
2. Doxy or fluoroquinolones
How to treat tinea capitis?
Oral terbinafine = oral griseofulvin
What abx to treat Lyme in pregnant woman?
Amoxicillin
No doxy as it is bad for fetal long bone development and color discoloration
Which lab abnormalities are associated with Rocky Mountain Spotted Fever?
Thrombocytopenia
Hyponatremia
Transaminitis
What abx for fulminant C diff (e.g. HD unstable, ileus, megacolon)?
Metro IV and PO Vanco
how to treat HIV associated thrombocytopenia?
antiretroviral
What is Centor criteria
Cough (absence) + 1 Exudative tonsil +1 LAD +1 Temp >38 +1 Age: <14 +1; >44 -1
if more than 3, get rapid strep
What are modes (3) of contracting Toxo in pregnant women?
Raw or undercook meat
unwashed produce
handling cat feces
Sporotrichosis causes (painless or painful) papule that will soon ulcerate to drain what type of fluid? what is treatment
Painless
Nonpurulent, odorless fluid
Itraconazole PO 3-6 months
What facial feature/symptoms can cat scratch disease cause? what is the rare complication?
conjunctivitis with ipsilateral LAD
lymph node suppuration
What is typical presentation of PCP pneumonia in HIV?
when CD4 < 200
3 weeks of low grade fever and nonproductive cough
What is typical presentation of acute HIV infection? general presentation, skin lesion, and hematology abnormality.
Mono like
painful mucocutaneous lesion and maculopapular rash
Leukopenia and thrombocytopenia
what is rare sequalae of Parvovirus B19 infection in children?
viral arthritis (symmetrical, onset shortly after rash in face and extremities, swelling/pain/stiffness)
What are ppx (3) for Neisseria meningitidis exposure?
Rifampin BID x 2
Cipro x 1
Ceftriaxone x 1
Which infection (2) can cause stroke in young adult?
Vvaricella zoster virus
Meningovascular syphilis
What to give HIV PPx? When to give?
Enofovir, emtricitabine, and raltegravir for 4 wk
within 72 hr
Is it required to report HIV to partner? to local department of public health?
Not to partner
Yes to DPH
Which infection can increase rate of HIV transmission?
Trichomonas vaginalis, motile protozoan, causes trichomoniasis.
Tx with PO metronidazole
What virus is tested after HIV confirmation? due to antiretroviral can treat both virus.
Hep B
