<prompt> Empirical antibiotic treatment in a suspected case of pneumonia who has received no antibiotics in the past three months to be managed on outpatient basis is -Oral ClarithromycinOral fluoroquinoloneOral beta lactam with injectable aminoglycosideOral linezolid  <response>: Ans. is a i.e., Oral Clarithromycin As per the recommendations for empirical antibiotic management oral clarithromycin is the Empirical antibiotic treatment in a suspected case of pneumonia who has received no antibiotics in the past three months to be managed on outpatient basis.Empirical Antibotic Treatment of Community-Acquired PneumoniaOutpatientsPreviousuly healthy and no antibiotics in past 3 months A macrolide clarithromycin 500 mg PO bid or azithromycin 500 mg PO once, then 250mg qd or Doxycycline 100mg PO bidComorbidities or antibiotics in past 3 months: select an alternative from a different class. A respiratory fluoroquinolone or A b-lactam . A b-lactam plus a macrolide Inpatients, ICU A b-lactam cefotaxime 1-2 g IV q8h, ceftriaxone 2g IV qd, ampicilin-sulbactam 2g IV 48h plus Azithromycin or a fluoroquinolone as listed above for inpatients, non-ICUSpecial ConcernsIf Pseudomonas is a consideration An antipneumococal, antipseudomonal b - lactam piperacilintazobactam 4-5 g IV q6h, meropenem lg IV q8h plus either ciprofloxacin 400 mg IV q 12h or levofloxacin 750mg IV qd The above b-lactams plus an aminoglycoside The above b-lactams plus an aminoglycoside plus an antipneumococcal fluoroquinoloneIf CA-MRSA is a consideration Add linezolid 600 mg IV q 12h or vancomycin lg IV q 12h. 