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Table 1 Hunter criteria

From: Serotonin syndrome triggered by postoperative administration of serotonin noradrenaline reuptake inhibitor (SNRI)

Hunter criteria

History of serotonergic agent usage

At least one or more of the followings:

 1. Clonus: spontaneous, inducible, ocular

 2. Agitation

 3. Autonomic dysfunction (i.e., hyperthermia)

 4. Tremor

 5. Hyperreflexia