Antibiotics

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Author:
bigfootedbertha
ID:
94043
Filename:
Antibiotics
Updated:
2011-07-15 06:18:17
Tags:
abx
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Description:
EMed antibiotics
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  1. What age ranges get abx in strep pharyngitis?
    12-20
  2. How soon do you give CAP tx in the ED?
    < 4 hours
  3. 3 viral causes of pneumonia
    Influenza, parainfluenza, varicella
  4. Pt with pneumonia with extrapulmonary manifestations, diarrhea, and sweaty abdominal pain has what type?
    legionella
  5. What is the preferred abx combo for outpt CAP?
    Doxy, levo or moxy, and a macrolide (azithromycin)
  6. What are alternate outpt CAP therapies for pts <50 yo and no comorbidities?
    macrolide or doxycycline
  7. What are alternate outpt CAP therapies for pts >50 yo or with comorbidities?
    Fluoro (levo or moxy)
  8. What are options for empiric abx for hospitalized pneumonia pts?
    • 2G or 3G ceph +/- macrolide
    • beta lactam/betalactamase inhibitor +/- macrolide
    • Quinolone alone
  9. How do you treat a nursing home pneumonia?
    • Pseudomonas: quinolones (cipro, though not as empiric, it doesn't cover strep pneumo)
    • 4G ceph (cefapine IV)
    • Zosin, gentamycin
  10. what is a significant urine WBC count?
    > 10^5 in non pregnant women, ?100 cfu in men and pregnant women
  11. Which UTI pts would you suspect having anaerobes?
    HIV/AIDs
  12. Lower UTI tx
    short course (3 days) of Bactrim, Cipro or Levo, or macrodantin
  13. What abx DON'T you use for low UTI?
    oral PCN or ceph
  14. What can cause a clinical UTI with low grade pyuria without bacteruria?
    • chlamydia, trichomonas, herpes
    • viral (esp. adenovirus)
  15. Outpt tx for pyelo
    • 14 days or longer
    • bactrim, quinolone, certain cephalosporins
    • NO amp, macrodantin, keflex
  16. what can prevent rheumatic fever with strep?
    • tx started <9 days from onset of sx
    • The only abx that can do this is PCN G IM
  17. what can prevent GN in strep?
    no abx, bc GN is an immune reaction
  18. What are Centor criteria?
    • temp >38
    • Absence of cough
    • Tender and enlarged cervical nodes
    • Tonsillar swelling or exudates
    • age 3-14 years
    • -1 point for age >45
  19. What are indications for steroids in pharyngitis/tonsillitis?
    • difficulty swallowing, pain and inflammation
    • dexamethasone or prednisone
  20. How do you tx severe strep in the ED?
    • IVF
    • Abx (PCN, Azith, clinda, ceftriaxone)
    • Steroid (prednisone, decadron, solumedrol)
    • NSAID
    • Wait two hours and most pts feel better
  21. length of abx tx for sinusitis
    3 days (may be as good as two weeks due to the fact that a lot of sinusitis is viral)
  22. most common cause of epiglottitis
    traditionally H flu, now it's mostly GM+ bacteria
  23. epiglottitis tx
    • all children get artificial airway (intubate with anesthesia in the OR with ENT present)
    • If intubation unsuccessful, do surgical or needle cricothyroidectomy (if that fails then tracheostomy)
    • after airway has been secured, do rocephni +/- Vanco
  24. Most common cause of stridor in children
    croup
  25. Croup tx
    Heliox (but not possible if pt requires >40% O2)
  26. OE tx
    • thorough cleansing of ear canal most important
    • TM intact: irrigate w/hypertonic saline, h. peroxide, vinegar/alcohol mixture (1:1)

    TM perf: cortisporin otic suspension or opthalmic drops
  27. most useful tool in OM dx
    pneumatic otoscopy (light reflex no dx value)
  28. OM tx failures
    • Augmentin, ceph, or zithromax
    • If those fail, ceftriaxone
  29. OM tx length
    10 days <6, 5 days if older
  30. Conjunctivitis tx
    • avoid neomycin due to allergy
    • Bleph-10 polymixin, quinolones x5d

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