The total flow for a 50% air-entrainment mask running at 8 L/min is _____ L/min
a. 18 c. 25
b. 22 d. 30
ANS: B
100% O2 – 50% = 50%. 20% air – 50% FIO2 = 30. 30:50 = 1:1.7. For every 1 L/min of O2, there is 1.7 L/min of air being entrained. 1 + 1.7 = 2.7 ? 8 = 21.6 L/min total flow.
You might also like to view...
If the wrong days supply has been entered for a prescription, what refusal message will be generated from the insurance billing computer?
A) Incorrect days' supply B) Patient not covered C) Too early to refill D) Wrong quantity
Which of the following statements about forcible entry is MOST accurate?
A. Forcible entry should only be used in structural buildings. B. Forcible entry causes minimal damage when applied properly. C. Forcible entry will cause significant damage even done properly. D. Forcible entry can be used even when normal means of access are available.
How often should the fractional inspired oxygen (FIO2) of an adult be measured?
a. Twice daily b. Continuously c. Every patient-ventilator system check d. Every other patient-ventilator system check
In patient-centered care, the surgical team bases assessment, planning, and intervention on the unique needs of the ________
A. surgical technologist C. surgeon B. patient D. patient's family members