HAC: ACP (IM Ess.) Flashcards
Listeria monocytogenes: gram stain
gram + rods
L. monocytogenes meningitis tx
ampicillin
Common groups infected w/L. monocytogenes meningitis
- elderly
- neonates
- immunocompromised
Most sensitive/specific test for HSV encephalitis
Cerebrospinal fluid polymerase chain reaction assay is the most sensitive and specific test for the diagnosis of herpes simplex encephalitis.
S. pneumo: gram stain
gram + diplococci
S. pneumo meningitis empiric therapy
-vanc + 3rd gen. ceph (e.g. ceftriaxone)
Imaging in suspicion of stroke
- Non-contrast CT Head ==> r/o hemorrhagic stroke
2. MRI if CT negative
Important medication in resolving acute ischemic stroke
-aspirin vs. clopidogrel
Guidelines for thrombolysis in ischemic stroke
- rTPA treatment be initiated within 1 hour of arrival at the emergency department and within 3 hours of symptom onset
- benefit of rtPA up to 4.5 hours after stroke onset w/ exclusion criteria = age greater than 80 years, severe stroke, diabetes mellitus with a previous infarct, and any anticoagulant use
Dx testing suspected subarachnoid hemorrhage
- CT w/out contrast
- if neg. ==> lumbar puncture
- RBCs or xanthochromia indicate signs of SAH
Criteria for hospitalization after TIA
-ABCD2 score: Age of 60 years or greater (+1) Blood pressure of >140/90 (+1) Clinical sx: hemiparesis (+2) Duration of >60 min. (+2) Diabetes mellitus (+1) -Score 3 or higher ==> indication for hospitalization
Treatment of blood pressure in ischemic stroke
Patients with ischemic stroke who are ineligible to receive recombinant tissue plasminogen activator and have no evidence of end-organ damage should not be treated for elevated blood pressure of up to 220/120 mm Hg.
Incidental lung nodules f/u
- never smoked: 8mm ==> biopsy vs. 3,9,24 mo. CT f/u
- never smoked: no f/u
- current/former smokers: CT @ 12mo.
- solid nodule stable on CT x 2 yrs = benign ==> no further f/u
Lung cancer tx
- early-stage (stages I and II) disease ==> surgery
- IB (>3cm tumor) ==> + adj. chemo
- Chemotherapy plus radiation is indicated for locally advanced tumors (i.e., stage III disease characterized by mediastinal lymph node involvement)
Small cell lung cancer treatment
- surgery = early stage
- chemo + radiation = “limited stage” (limited to chest)
- chemo only = extensive stage
Evaluation of breast mass
“Triple assessment”:
- palpation
- mammography +/- US
- FNA/biopsy
F/U for breast mass
- simple cyst ==> f/u exam 4-6 wks after aspiration for recurrence/residual lump
- solid mass ==> FNAB or excisional biopsy; if neg. ==> close clinical f.u.
Exceptions to typical colon cancer screening
-early colonoscopy for any individual w/first deg. family member w/colon cancer
Stage III colon cancer tx
- resection
2. adjuvant chemo
Method of estimating GFR
- equation-based calculation of GFR
- CKD-EPI (CKD epidemiology collaboration)
- Cr clearance overestimates GFR (because some is excreted), but approximates true GFR in patients w/out kidney disease
Histology in rapidly-progressing glomerulonephritis
-most commonly crescentic glomerulonephritis
glomerulonephritis characteristics
-nephritic syndrome
- ==> hematuria, oliguria, HTN, acute kidney failure
- ==> pyuria, hematuria, cellular/granular casts
+/- proteinuria
Examples of nephrotic syndromes
-MCD
-FSGS
-membranous glomerulonephropathy
==> edema, hypoalbuminemia, proteinuria, bland sediement (no casts, RBCs, leuks)
MCD disease type
nephrotic syndrome