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Screening blood tests for medical causes of olfactory disorders
| Screening blood test | Medical cause of olfactory disorder |
|---|---|
| FBC | Anaemia |
| U&Es | Chronic renal dysfunction |
| LFTs | Hepatic dysfunction |
| TFTs | Hypothyroidism |
| ACE | Sarcoidosis |
| ANCA | Vasculitides |
| Zinc | Zinc deficiency |
| Iron | Iron deficiency anaemia |
| Magnesium | Hypomagnesemia |
| VDRL | Syphilis |
| HbA1c | Diabetes mellitus |
| 9 am cortisol levels | Addison’s disease |
| Vitamin B12 and folate levels | Vitamin B12 and/or folate deficiency |
