Investigations performed during an overnight stay in young children with severe recurrent wheeze
| Investigation | |
| Day 1 | Sweat test |
| Under oral sedation, if needed | High-resolution CT chest scan |
| Under general anaesthetic | Blood tests: total IgE, RASTs to food and aeroallergens, IgG, IgA, IgM and IgG subclasses |
| Nasal ciliary brushings | |
| Fibreoptic bronchoscopy with bronchoalveolar lavage and endobronchial biopsies | |
| Placement of oesophageal pH probe | |
| Day 2 | Review and discharge |
CT: computed tomography; Ig: immunoglobulin; RAST: radioallergosorbent test.