Pneumonia Flashcards
state two LRTIs?
bronchial infection
pneumonia
what two anatomical types of pneumonia is there?
lobar
bronchopneumonia
what does lobar pneumonia look like?
Fibrosuppurative consolidation of a single lobe
does bronchopneumonia affect one lobe?
no
- patchy consolidation of different lobes
what are the etiological classification of pneumonia?
community acquired
hospital acquired
aspiration
immunocompromised
what organisms cause community acquired pneumonia ?
Pneumococcus, mycoplasma, haemophilus
S. aureus, Moraxella, Chlamydia, Legionella
after how long in hospital does hospital acquired pneumonia occur?
> 48hrs
what organisms cause hospital acquired pneumonia ?
Gm-ve enterobacteria, S. aureus
what conditions increase the risk of aspiration pneumonia ?
stroke, bulbar palsy, ↓GCS, GORD, achalasia
what organisms cause aspiration pneumonia ?
Anaerobes
what organisms can immunocompromised pneumonia ?
PCP, TB, fungi, CMV/HSV
how is severity determined for pneumonia ?
CURB65
what special investigation can be done for PCP (pneumocystis jiorveci pneumonia)
Immunofluorescence
what investigations should be done for pneumonia ?
Bloods: FBC, U+E, LFT, CRP, culture, ABG (if ↓SpO2)
Urine: Ag tests (Pneumococcal, Legionella)
Sputum: MC&S
Imaging: CXR
Paired sera Abs for atypicals
- Mycoplasma, Chlamydia, Legionella
pleural tap
what does a score of 1,2,3 mean for where the patient can be treated with the CURB65 score ?
0-1 → home Rx
2 → hospital Rx
≥3 → consider ITU
what is the treatment for mild pneumonia ?
amoxicillin 500mg three times daily PO for 5d
or
clarithro 500mg twice daily PO for 7d
what is the treatment for moderate pneumonia ?
amoxicillin 500mg TDS
and
clarithro 500mg BD PO/IV (clarithro alone if pen allergy) for 7d
what is the treatment for severe pneumonia ?
Co-amoxiclav 1.2g TDS IV / cefuroxime 1.5g TDS IV
and
clarithro 500mg BD IV for 7-10d
Add fluclox if staph suspected. (hospital acquired) Add vancomycin if MRSA is suspected
what is the treatment for atypical pneumonia ?
Chlamydia: tetracycline
PCP: Co-trimoxazole
Legionella: Clarithro + rifampicin
what is the treatment for hospital acquired pneumonia?
Mild / <5d: Co-amoxiclav 625mg PO TDS for 7d
Severe / >5d: Tazocin ± vanc ± gent for 7d
what is the treatment for aspiration pneumonia?
Co-amoxiclav 625mg PO TDS for 7d
what is pneumovax 23 used for?
It is used for the prevention of pneumonia caused by the 23 different types of pneumococci bacteria that are contained in the vaccine.
what are the indications of pneumovax 23?
≥65yrs
Chronic heart, lungs, liver and renal (nephrosis, post transplant) failure or conditions
DM
Immunosuppression: hyposplenism (splenectomy, asplenia, sickle cell, coeliac disease), chemo, HIV
what are the contraindications of pneumovax 23?
Pregnancy
breast feeding
fever
when should pneumonia be followed up?
6 weeks