- No sputum G/S or cultures
- Ceftriaxone 1 gm Q24H
and consider adding
Doxycycline 100 mg PO/IV Q12H or
Erythromycin** 500-1000 mg IV Q6H
- Doxycycline and Erythromycin
both have excellent
activity against Legionella,
Mycoplasma, and
Chlamydia pneumonia (which the
cephalosporins miss).
- Use the lower dose of Erythro
(500 mg) for
Pts >70 yrs. or renal or hepatic
dysfunction
to decrease risk of ototoxicity.
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- Ceftriaxone 1 Gm Q24H while in ED
- Sputum G/S & culture in ICU
(preferably tracheal aspirate)
- <40 years: Vancomycin*,
Ceftazidime*
and Erythromycin**
- 40 years or over: Vancomycin* &
Ciprofloxacin*
- Patients at risk for Pseudomonas
or life threatening
aspiration pneumonia:
Vancomycin*, Zosyn®** &
Ciprofloxacin*.
- If sputum G/S & culture negative
switch to Ceftriaxone &
Erythromycin** or, if taking POs, IV
Ceftriaxone & PO
Erythromycin** or PO Doxycycline (PO
Azithromycin
if intolerant of Erythro or Doxy)
- If sputum G/S & culture positive
tailor regimen
to results
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