A 42-year-old woman is referred to you with a reduced level of consciousness
A 42-year-old woman is referred to you with a reduced level of consciousness. Her partner reports that she has been generally unwell over the preceding few days with fever and diarrhoea. This morning, she was unrousable. Her observations demonstrate a fever of 38.7℃.
Urgent bloods demonstrate:
| Haemoglobin | 73 | (115-165) |
| Platelets | 9 | (140-400) |
| Bilirubin | 132 | (<21) |
| LDH | 7472 | (<250) |
| Haptoglobin | <0.1 | (0.7-3.2) |
Which is the single most definitive diagnostic test to perform?
Select the SINGLE most appropriate option from the list below. Select ONE option only.
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