ID Flashcards
when to tx flu
clinical sxs (malaise, myalgia, HA, fever, rhinitis, sore throat, cough)
what tinea infxn requires systemic anti fungal?
tinea capitis
1 cause of erythrasma
corynebacterium minutissimum
x of intertrigo complicated by erythrasma
erythromycin
HIV pt CD count
corticosteroids when PO2
1st line tx for acute otitis media (AOM)
amoxicillin
4 Centor criteria for strep throat
1) tonsillar exudates
2) tender ant LN
3) no cough
4) fever
4 –> Tx
3 –> test
purpose of tx pertussis
decr infectivity (no effect on duration or severity)
MCC of superficial foot infxns
staph and strep
PPD mm cutoffs
at least 5 mm:
- HIV
- transplant
- household contact
at least 10 mm
- kids
- nursing home
- jail
- homeless
- immigrants
- IVDU
- hospital workers (incr in 10 mm)
- chronic illnesses
bac causes for AOM
strep pneumo
H flu
M cat
tx options for flu and CI to tx
oseltamivir
zanamivir (CI if COPD, asthma, respiratory distress)
if worried a/b tetanus, and unsure a/b vaccinations
if vaccinated past 5 yrs, don’t vaccinate
if more than 5 years, don’t vacc if got Tdap
1st line for head lice
permethrin
latex allergy cross reacts w/ what fruits
avocado
bananas
kiwi
HCV test
enzyme immunoassay
if positive, recombinant immunoblot assay
if pos, HCV RNA (if +, active, if -, resolved)
if negative, was false + immunoassay
what proteins are decreased in a septic patient
albumin
transferrin
who gets a 2 step PPD
people at high risk
pos PPD but no sxs, next step
CXR
organism that fluoresces red under Wood’s lamp
Corynebacterium
organism that fluoresce green under Wood’s lamp
Microsporum
tx for corynebacterium
erythromycin
tx of impetigo limited to a small area
topical mupirocin
2 step PPD: 1st neg, 2nd pos. What does this mean?
long standing, latent infection
tx of latent TB
INH 9 mos
preferred pressor in sepsis causing decr MAP
norepinephrine (Levophed)
vasopressin used if NE doesn’t work
vaccines after splenectomy
pneumococcal
meningococcal
Hib
indications for imiquimod
external genital and perianal warts in age 12 and older
Hep B vacc indications
MSM multiple sexual partners IVDU prison inmates hemodialysis living w/ Hep B carriers health care workers from endemic areas
Hep A vacc indications
MSM
IVDU
impetigo mostly caused by
staph aureus
tx of conjunctivitis in contact lens wearers
gentamicin ointment (covers staph, strep, and GRAM NEG)
excessively purulent conjunctival discharge - dx?
gonococcal conjunctivitis
bacterial cause of acute sinusitis
strep
bacterial cause of chronic sinusitis
polymicrobial
tx adult chronic sinusitis
fluoroquinolone or amox/clavulanate for 2-3 wks
what to do if needlestick occurs with HIV pt
test for HIV Ab and begin 2 drug therapy
test to rule out acute HIV infection
HIV RNA (viral load)
only thing beneficial for cold
ipratropium (atrovent) an anticholinergic nasal spray (decr rhinorrhea and sneezing)
tx acute otitis externa
TOPICAL cipro and dexamethasone (Ciprodex)