Response to 35% CO2 as a marker of panic in severe anxiety.
One inhalation of 35% CO2 was administered to each of 32 patients with high anxiety ratings. Only patients with panic disorder had increases in reported anxiety upon CO2 intake. CO2-triggered anxiety appears specific for panic disorder and independent of baseline anxiety.
Griez
E
E
Academic Anxiety Center, Mental Hospital Vijverdal, The Netherlands.
Zandbergen
J
J
Pols
H
H
de Loof
C
C
D000328:Adult; D001008:Anxiety Disorders / Q000139:chemically induced / Q000175:diagnosis*; D002245:Carbon Dioxide / Q000494:pharmacology; D005239:Fear / Q000187:drug effects*; D005260:Female; D006801:Humans; D008297:Male; D010200:Panic / Q000187:drug effects*; D010555:Personality Inventory
D002245:Carbon Dioxide