U.S., July 9 -- ClinicalTrials.gov registry received information related to the study (NCT07690358) titled 'Concentrations of Nitrous Oxide in Blood, Exhaled Air and Urine After Various Types of Exposure.' on June 29.
Brief Summary: The study examines the concentrations of nitrous oxide that are achieved in blood, exhaled air, and urine after three different exposures to nitrous oxide:
inhalation of three or four cartridges of nitrous oxide released in a car cabin in a switched-off car, consumption of 100 g of whipped cream in which nitrous oxide is used as a propellant, and exposure through work as a midwife in a delivery room.
The concentrations in blood and exhaled air are measured for up to 1 hour after exposure, and in urine for up ...