Changes in Respiratory Dead Space During Halothane, Cyclopropane, and Nitrous Oxide Anesthesia

Received from the Department of Anesthesia, Schools of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania; accepted for publication February 18, 1964. Dr. Askrog was Fellow in Anesthesiology (present address: Department of Anesthesia, Bispebjerg Hospital, Copenhagen, Denmark); Dr. Pender was Visiting Clinical Associate Professor in Anesthesiology (present address: 300 Homer Ave., Palo Alto, California).