Mycoplasma pneumoniae: Difference between revisions
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==Background== | ==Background== | ||
*Typically affects patients <40yo | *Typically affects patients <40yo | ||
==Clinical Features== | |||
*Pneumonia | |||
**Walking PNA, patchy and interstitial | |||
**Relative bradycardia | |||
*[[Bullous myringitis]] - painful, fluid filled vesicles on eardrum | |||
**Presence of otalgia should prompt evaluation | |||
**(Streptococcus pneumoniae is also associated w/ bullous myringitis) | |||
*[[Guillain-Barre Syndrome]] | |||
*Cold agglutinins w/ IgM | |||
*[[Erythema Multiforme]] | |||
*[[Encephalitis]] | |||
==Differential Diagnosis== | ==Differential Diagnosis== | ||
Revision as of 13:40, 5 June 2016
Background
- Typically affects patients <40yo
Clinical Features
- Pneumonia
- Walking PNA, patchy and interstitial
- Relative bradycardia
- Bullous myringitis - painful, fluid filled vesicles on eardrum
- Presence of otalgia should prompt evaluation
- (Streptococcus pneumoniae is also associated w/ bullous myringitis)
- Guillain-Barre Syndrome
- Cold agglutinins w/ IgM
- Erythema Multiforme
- Encephalitis
Differential Diagnosis
Causes of Pneumonia
Bacteria
Viral
- Common
- Influenza
- Respiratory syncytial virus
- Parainfluenza
- Rarer
- Adenovirus
- Metapneumovirus
- Severe acute respiratory syndrome (SARS)
- Middle east respiratory syndrome coronavirus (MERS)
- 2019-nCoV (COVID-19)
- Cause other diseases, but sometimes cause pneumonia
Fungal
- Histoplasmosis
- Coccidioidomycosis
- Blastomycosis
- Pneumocystis jirovecii pneumonia (PCP)
- Sporotrichosis
- Cryptococcosis
- Aspergillosis
- Candidiasis
Parasitic
Antibiotic Sensitivities[1]
Key
- S susceptible/sensitive (usually)
- I intermediate (variably susceptible/resistant)
- R resistant (or not effective clinically)
- S+ synergistic with cell wall antibiotics
- U sensitive for UTI only (non systemic infection)
- X1 no data
- X2 active in vitro, but not used clinically
- X3 active in vitro, but not clinically effective for Group A strep pharyngitis or infections due to E. faecalis
- X4 active in vitro, but not clinically effective for strep pneumonia
Table Overview
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See Also
References
- ↑ Sanford Guide to Antimicrobial Therapy 2014