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Catatonia Chronicles: When the Lorazepam Challenge Shows a Delayed Response
Chaden Noureddine1, Emil Achmad2
1Department of Psychiatry, Icahn School of Medicine at Mount Sinai, New York, New York, USA.
Case Reports in Psychiatry
|October 20, 2025
Summary
This case study highlights a young man diagnosed with catatonia presenting primarily with cognitive impairment. The lorazepam challenge test (LCT) revealed a delayed response, challenging traditional diagnostic timelines for this complex disorder.
Area of Science:
- Neurology
- Psychiatry
- Clinical Medicine
Background:
- Catatonia is a complex syndrome with motor and cognitive symptoms, historically linked to schizophrenia but now recognized in broader contexts.
- The DSM-5 expanded diagnostic criteria for catatonia, acknowledging its association with diverse mental and physical health conditions.
- The lorazepam challenge test (LCT) is a standard diagnostic and therapeutic tool for catatonia.
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