When using low-flow circle absorber techniques, the uptake of nitrous oxide must be considered. In a healthy 70 kg adult the expected uptake of nitrous oxide, with a 70% inspired concentration, after 1.5 hours would be about
Correct Answer: 100 ml.min-1
Description: uptake of N2O (in mls/min) is equal to 1000 divided by the square root of the time elapsed (in mins) * the time elapsed is 100 minutes. * the square root of this is 10 * 1000 divided by 10 is 100 so the N2O uptake at 100 mins into the case would be about 100mls/min.
Category:
Anaesthesia
Get More
Subject Mock Tests
Practice with over 200,000 questions from various medical subjects and improve your knowledge.
Attempt a mock test nowMock Exam
Take an exam with 100 random questions selected from all subjects to test your knowledge.
Coming SoonGet More
Subject Mock Tests
Try practicing mock tests with over 200,000 questions from various medical subjects.
Attempt a mock test now