Treatment of pneumonia Flashcards

1
Q

What is pneumonia?

A

A lower respiratory tract infection usually with:

  • fever
  • symptoms/signs in chest
  • abnormal CXR
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2
Q

How is penumonia transmitted?

A

Aerosolisation

Aspiration

  • micro = oropharyngeal secretions
  • gross = usually anaerobes/gram -ves from GIT

Haematogenous spread

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3
Q

Why do aspiration pneumonias occur?

A

Occur in those patients who cannot protect their airways

  • anaesthetised
  • CVA
  • under the influence of alcohol
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4
Q

What are the predisposing factors for pneumonia?

A

Elderly

Institutions (nasocomial infection)

Alcoholism

Poor nutrition

Immunocompromised

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5
Q

What are the symptoms of pneumonia?

A

Fever

Cough

Pain

SOB/dyspnoea

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6
Q

What are the signs of pneumonia?

A

Consolidation

  • decreased percussion note
  • increased tactile and vocal fremitus

Crackles

Bronchial breathing (harsh sounds of a blowing quantity)

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7
Q

What is the measurement used to score the severity of pneumonia?

A

CURB 65

Confusion
Urea > 7
Respiratory rate > 30
Blood pressure < 90/60
> 65 years old

> 2 = admit to ITU

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8
Q

What investigations should be done for suspected pneumonia?

A

Sputum

  • AFB smear (test for TB)
  • MC&S (to ID organism)

Urine

  • legionella antigen
  • output

Blood

  • MC&S
  • Urea (test of kidney function)
  • Serology (identify antibodies)
  • WBC

ECG

Radiography

  • XCR
  • CT (more sensitive)

Bronchoscopy and brushing if NAD

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9
Q

Which empirical antibiotic should be used for uncomplicated pneumonia?

A

Amoxicillin (oral)
+
Clarithromycin (oral)

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10
Q

Which empirical antibiotic should be used for complex/severe pneumonia?

A

Co-amoxiclav / Cefuroxime (IV)
+
Clarithromycin (oral)

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11
Q

Which antibiotics should be used for atypical pneumonia?

A

Clarithromycin

Rifampicin (IV)

Tetracycline

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12
Q

Which antibiotics should be used for cavitation pneumonia?

A

Cefuroxime (IV)

Metranidazole (IV)

Flucloxacillin (IV)

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13
Q

Which antibiotics should be used for aspiration pneumonia?

A

Co-amoxiclav

Metranidazole

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14
Q

When should a pneumonia patient be admitted to ITU?

A

When CURB 65 > 2

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15
Q

What are the possible complications of pneumonia?

A

Lung abcess

Empyema

Bronchiectasis (abnormal widening of the bronchi + branches)

Acute respiratory distress syndrome

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16
Q

What is acute respiratory distress syndrome (ARDS)?

A

O2 alveolar pressure:fraction of inspired O2 < 200mmHg

i.e. low oxygen levels in blood

17
Q

What are the signs and symptoms of ARDS?

A

Bilateral infiltrates on CXR
- caused by influx of inflammatory cells into alveoli

  • Tachypnoea
  • Hypoxaemia
  • Central cyanosis
  • Bilateral chest crackles
18
Q

How should ARDS be treated?

A

Mechanical ventillation

Reduction of pulmonary oedema

  • fluid restriction
  • diuretics
  • haemofiltration

Steroids

Vasodilators

Treatment of underlying cause