Respiratory System Conditions

Subtopic:

Bronchitis

Acute Bronchitis

  • Acute inflammatory disease of the
  • Causes
    • Mostly viral
    • In older children, can be caused by Mycoplasma pneumonia
    • Secondary Bacterial infection: Streptococcus pneumonia, Haemophilus influenzae
  • Predisposing factors
    • Exposure to cold, dust, smoke
    • Cigarette smoking

Clinical features

    • Often starts with rhinopharyngitis, descend progressively to larynx, pharynx, tracheitis
    • Irritating, productive cough sometimes with scanty mucoid, blood streaked sputum
    • Chest tightness, sometimes with wheezing
    • Fever may be present No tachypnoea or dyspnoea
    • Secondary bacterial infection: fever > 5°C, dyspnoea, purulent expectorations
  • DDx; Bronchial asthma, emphysema, Pneumonia, tuberculosis
  • Investigations; Diagnosis based on clinical features Chest X-ray

Management/treatment

    • Most cases are viral and mild
    • Paracetamol 1 g every 4-6 hours (max: 4 g daily)
    • Child: 10 mg/kg (max: 500 mg) per dose
    • Plenty of oral fluids
    • Children: nasal irrigation with normal saline to clear the airway
    • Local remedies for cough (honey, ginger, lemon)
    • If there is suspicion of bacterial infection, especially if patient is in general poor conditions (malnutrition, measles, rickets, severe anaemia, elderly, cardiac disease)
  • Give Amoxicillin 500 mg every 8 hours Child: 40 mg/kg dispersible tablets every 12 hours
  • Or Doxycycline 100 mg every 12 hours Child >8 years: 2 mg/kg per dose

Prevention

    • Avoid predisposing factors above