Psychiatryniche
A 26-year-old woman with a history of childhood sexual abuse collapses in the emergency department waiting room and develops generalised shaking. Twelve minutes later the movements continue, waxing and waning, with side-to-side rolling of her head. Her eyes are tightly closed and resist being opened. Oxygen saturation is 98% on room air and she is not cyanosed; capillary blood glucose is 5.4 mmol/L. When you say her name she briefly opens her eyes and makes eye contact before the shaking resumes. There is no incontinence or tongue biting. Which one of the following is the most appropriate immediate management?