anesthesiamachine - The The Anesthesia Anesthesia Gas...

Info iconThis preview shows pages 1–67. Sign up to view the full content.

View Full Document Right Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: The The Anesthesia Anesthesia Gas Machine Gas Machine When was Nitrous oxide first used? 1884 by Wells What is the boiling point of Nitrous oxide?-89.5 C Does nitrous oxide exist as a gas or a liquid at room temperature (20 C)? Nitrous oxide exists as a gas at room temperature. Any substance that has a boiling point LESS than room temperature, exists as a gas at room temperature. How does nitrous oxide exist in a cylinder? As a liquid What is the saturated vapor pressure of nitrous oxide at 20 C? N-50 Which inhalational anesthetic is not stable with soda lime? Sevoflurane What is the MAC of nitrous oxide? 105% What is the blood/gas partition coefficient of nitrous oxide? 0.47 What is the oil/gas partition coefficient (at 37 )? 1.4 When was isoflurane [FORANE] first used? When was it first used in the hospital setting? 1969 Stevens et al Released in hospitals in the 1980's What is the chemical formula for isoflurane? CF 3 CHClOCF 2 H eitheral What is the boiling point of Isoflurane? Does it exist as a gas or a liquid at room temperature? The boiling point is 48.5 C As a liquid (BP > room temp 20 C) What is the saturated vapor pressure of isoflurane at 20 C? 239.5 mmHg What fraction of isoflurane is found in the vaporizer? 239.5 mmHg /760mmHg = 0.31 Or 31% What would be the fraction of isoflurane in a vaporizer in Denver (atmospheric pressure ~ 615 mmHg)? 239.5 mmHg/ 615 mmHg = 0.39 Or 39% What is the MAC of isoflurane? 1.15 % atmosphere What is the blood/gas partition coefficient? 1.4 What is the oil/gas partition coefficient? 99 When was sevoflurane first used? First introduced in the hospitals? 1981 Holiday Released in hospitals 2000's What is the chemical formula of sevoflurane? (CF 3 ) 2 CHOCFH 2 What is the boiling point of sevoflurane? Does it exist as a gas or a liquid at room temperature? 58.5 C Exists as a liquid at room temperature What is the saturated vapor pressure of sevoflurane at 20 C? 157 mmHg When was desflurane first used? First introduced in hospitals? 1990 Jones et al Released in hospitals in the mid-1990's What is the chemical formula for desflurane? CF 3 CFHOCF 2 H What is the boiling point of desflurane? 23.5 C (it almost boils at room temp) What is the saturated vapor pressure of desflurane? 669.2 mmHg How do PSIA and PSIG differ? PSIA is the pound per square inch absolute , which is the pressure difference between the measured pressure and that at absolute zero. PSIG is the pound per square inch gauge , which is the difference between the measured pressure and atmospheric pressure . *0 PSIA = 14.7 PSIG What size cylinders are used on anesthesia machines? Anesthesia machines use E sized cylinders What are the dimensions of an E cylinder? 4.25 o.d. X 26 How much O 2 is held in an E cylinder? 659 L How much N 2 0 is held in an E cylinder? 1,590 L What are the dimensions of a H cylinder? How many times larger is it compared to an E cylinder? 9.25 o.d. X 51 10 times larger How much O 2 is held in a H-sized cylinder? 5,570 7,500 L...
View Full Document

This note was uploaded on 12/03/2009 for the course PSL 431 taught by Professor Stephenson during the Spring '07 term at Michigan State University.

Page1 / 238

anesthesiamachine - The The Anesthesia Anesthesia Gas...

This preview shows document pages 1 - 67. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online