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A 28 year old man presents with severe dyspnea and wheezing for 1 day. He was diagnosed with mild persistent bronchial asthma in childhood, and is currently on a salbutamol inhaler.

He also experienced a mild productive cough, rhinorrhea and a sore throat during the preceding week.

He does not smoke and has no other comorbidities or allergies.

Select Relevant Investigations
Full Blood Count

Performed

WBC: 8,000/mm3
N: 70%, L: 28%
Hb: 14 g/dl
Plt: 300,000/mm3
Lung Function Tests

Performed

PEFR: 180 L/min (40% of predicted)
FEV1: 1.5 L (37% of predicted)
Arterial Blood Gases

Performed

On room air:
pH: 7.5
PaCO2: 30 mmHg
PaO2: 60 mmHg
Chest X-Ray

Performed

The x-ray appears normal.

Select Relevant Management
Antibiotics
Theophyllines
Hydrocortisone
Magnesium Sulfate