The K cylinder at a patient's bedside contains 1300 psig and is ...

[Charlie]

The K cylinder at a patient's bedside contains 1300 psig and is using 7 L/min. It will take ap-proximately _____ hours to use 800 psig.
 
  a. 3.7 c. 6
  b. 9.7 d. 4

Question 2

The E cylinder on a crash cart contains 900 psig. How long would the cylinder last if used at 10 L/min?
 
  a. 1 hour c. 3 hours 36 minutes
  b. 25 minutes d. 4 hours 42 minutes

[tranoy]

Answer to Question 1

ANS: C
Amount of time left in cylinder = (cylinder pressure  cylinder factor)/flow rate of gas (li-ters/minute). K factor = 3.14. Time to use 800 psi = (800  3.14)/7 = 358.8 min/60 = 5 hours 59 minutes.

Answer to Question 2

ANS: B
Amount of time left in cylinder = (cylinder pressure  cylinder factor)/flow rate of gas (li-ters/minute). E factor = 0.28. Time to use 900 psig = (900  0.28)/10 = 25 minutes.

[Charlie]

Thanks for the timely response, appreciate it

[vickyvicksss]

Excellent