Summary of investigations before referral to tertiary specialist
| Investigation | Comment |
|---|---|
| IBD, inflammatory bowel disease; Ig, immunoglobulin; RAST, radioallergosorbent test. | |
| Haemoglobin 11.5 g/dl (7.2 mmol/l) | Normal |
| White cell count 9.5 × 106/l | Normal |
| Platelet count 315 × 106/l | Normal (acute phase reactant in IBD) |
| Renal function | Normal |
| Liver biochemistry | Normal |
| C reactive protein <6 mg/dl | Normal |
| Prothrombin time 13 seconds | Suggests fat soluble vitamin malabsorption unlikely |
| Sweat chloride 20 mmol/l | Normal |
| IgG, IgA, IgM | Normal on 2 occasions |
| IgG1–4 subclasses | Normal age appropriate values |
| Endomesial antibodies | Normal on two occasions (once when eating gluten) |
| RAST to milk and egg | Negative on two occasions |