Hospital-acquired pneumonia
Hospital-acquired pneumonia: symptoms develop >48hr after hospital admission
Patient clinically unstable:
- Fever in the past 48 hours 
- Systolic BP <90 mm Hg 
- Heart rate >100/min 
- Respiratory rate >24/min 
- O2 sat<90% or PaO2 <60 mmHg in room air 
Assess severity
No validated severity assessment tools were available for hospital-acquired pneumonia.
Treatment
- Offer an antibiotic(s) within 4 hours of establishing diagnosis 
- Consider severity and sensitivity assessment when selecting antibiotic(s) 
- Send a sample (sputum, nasopharyngeal swab, tracheal aspirate) for microbiological testing 
- Initiate antibiotic treatment for 5 days, then review (stop or continue or change) 
- Give oral antibiotics first line if possible 
- Review intravenous antibiotics by 48 hours and consider switching to oral antibiotics if possible 
Non-severe symptoms/signs
ORAL antibiotics
Co-amoxiclav
+  higher risk of resistance 
or penicillin allergy 
or co-amoxiclav unsuitable
Doxycycline 
Cefalexin
Co-trimoxazole
Levofloxacin
(Clarithromycin preferred if child)
Severe symptoms/signs (e.g. sepsis)
INTRAVENOUS antibiotics
Piperacillin with tazobactam
Ceftazidime 
Ceftriaxone
Cefuroxime
Meropenem
Ceftazidime with avibactam
*Levofloxacin (consider safety issues)
Add on therapy if MRSA
Vancomycin
Teicoplanin
Linezolid
*Levofloxacin:
Very rare irreversible side effects affecting musculoskeletal and nervous systems.
Stop treatment if serious adverse reaction (such as tendonitis)
Caution in using antibiotic if age>60y
Avoid co-administration with corticosteroid
