QUIZ for The Anesthesia Machine 2024

All of the following are required by the 2008 ASA Guidelines for Checkout Procedures prior to Anesthesia Delivery to be performed before the start of each case, EXCEPT:

• Verify patient suction is adequate to clear the airway.

• Verify that pressure is adequate on the spare oxygen cylinder mounted on the anesthesia machine.

• Verify that vaporizers are adequately filled and, if applicable, that the filler ports are tightly closed.

• Verify that gas flows properly through the breathing circuit during both inspiration and exhalation

Graduations of a flowmeter assembly using a ball bobbin is correctly read by reading:

• Through the center of the ball.

• Through the top of the ball.

• Through the bottom of the ball.

• Through the lower menisci.

Which of following is a reasonable maneuver in order to check if the plumb-bobbin of the flowmeter is NOT stuck?

• Turning the flowmeter on and see if the bobbin rotates.

• Turning the flowmeter off then press the O2 flush to see if the bobbins would go up.

• Turning the flowmeter on then press the O2 flush to see if the bobbins would go down.

• Turning the anesthesia machine on to see if all bobbins would move.

Suppose you were doing a case under general anesthesia.  Suddenly, all the lights went out because of a power failure.  You immediately increase the O2 flow from 2 LPMs without looking at the flowmeter.  However, you inadvertently turned the N2O knob of the flowmeter up to 9LPMs instead.  Assuming that the proportioning system is intact, how much O2 will be flowing?

• 3 LPMs

• 4 LPMs

• 5 LPMs

• 6 LPMs

An E-cylinder for oxygen would have holes for pins on which of the following positions?

• 1, 6

• 2, 5

• 2, 4

• 3, 5

The structure being pointed by the large arrow is called the:

• APL valve

• Pressure transducer valve

• Solenoid valve

• Fresh gas decoupling valve

This diagram is typical of: 

• Datex-Ohmeda 7000

• Mindray Workstation A7

• Drager AV-E

• Drager Fabius OS

The self-inflating bag or Ambu-bag, used in the emergency department, for resuscitation, is an example of which Mapelson system?

• A

• B

• C

• D

After a case under general anesthesia, the pharmacist asked you how much isoflurane was used on your patient.  You say that you used isoflurane at 1.5% (v/v) at 2LPMs for a 4-hour surgery.  How much isoflurane was consumed?

• At least 24 mL

• At least 36 mL

• At least 48 mL

• At least 52 mL

How much FGF should you use if the pressure gauge of the O2 cylinder is 1200 and you want the oxygen to last for about 3 hours with the patient spontaneously breathing?  

• 1.25 L/min

• 2.0 L/min

• 2.25 L/min

• 3 L/min