ANSWER KEYS
ANSWER KEY TO CALCULATION EXERCISES
EXERCISE 1 Calculating Cylinder Duration
1. 11 hours, 47 minutes
2. 1 hour, 16 minutes
3. 10 hours, 3 minutes
EXERCISE 2 Calculating FiO2
1. 0.74
2. 7 L/min
3. 0.44
EXERCISE 3 Calculating Liquid Oxygen Duration
1. 150 hours
2. 30 hours
3. 399 hours
EXERCISE 4 Calculating Flow Rate
1. 36 L/min
2. 17 L/min
3. 9 L/min
EXERCISE 5 Calculating Tidal Volume
1. 50 milliliters
2. 1666 milliliters
3. 1600 milliliters
Whitaker Answer keys-1
,EXERCISE 6 Calculating Inspiratory Time
1. 0.76 second
2. 0.34 second
3. 1.8 seconds
EXERCISE 7 Calculating Inspiratory Time When Desired Rate and I:E Ratio Are
Known
1. 0.86 second
2. 0.43 second
3. 1.3 seconds
EXERCISE 8 Determining Corrected Tidal Volume
1. 327 milliliters
2. 584 milliliters
3. 97.5 milliliters
EXERCISE 9 Calculating Mean Airway Pressure
1. 20.5 centimeters H2O
2. 10.5 centimeters H2O
3. 8.2 centimeters H2O
EXERCISE 10 Calculating Time Constants
1. 1.2 seconds
2. 1.8 seconds
3. 6.75 seconds
Whitaker Answer keys-2
,EXERCISE 11 Calculating Expiratory Time to Achieve a Desired Rate
1. 1.6 seconds
2. 0.4 second
3. 6 seconds
EXERCISE 12 Calculating Flow Rate on the Siemens Servo 900C Ventilator
1. 15 L/min
2. 24 L/min
3. 45 L/min
EXERCISE 13 Calculating Inspiratory Time on the Siemens Servo 900C Ventilator
1. 1.15 seconds
2. 1.75 seconds
3. 0.47 second
EXERCISE 14 Calculating Percent Solution
1. 0.225%
2. 0.41%
3. 2%
EXERCISE 15 Calculating the Dosage of Bicarbonate
1. 2.63 mEq
2. 9 mEq
3. 1 mEq
EXERCISE 16 Determining the Oxygen Index (OI)
1. 15.7
2. 12.7
3. 34.5
Whitaker Answer keys-3
, ANSWER KEYS TO CHAPTER POSTTESTS
CHAPTER 1 ANSWERS
1. B 10. B
2. A 11. D
3. B 12. B
4. B 13. A
5. C 14. C
6. D 15. D
7. C 16. B
8. A 17. D
9. B 18. C
CHAPTER 2 ANSWERS
1. D 10. B
2. A 11. C
3. A 12. A
4. C 13. C
5. B 14. C
6. D 15. B
7. A 16. D
8. D 17. A
9. B
Whitaker Answer keys-4
ANSWER KEY TO CALCULATION EXERCISES
EXERCISE 1 Calculating Cylinder Duration
1. 11 hours, 47 minutes
2. 1 hour, 16 minutes
3. 10 hours, 3 minutes
EXERCISE 2 Calculating FiO2
1. 0.74
2. 7 L/min
3. 0.44
EXERCISE 3 Calculating Liquid Oxygen Duration
1. 150 hours
2. 30 hours
3. 399 hours
EXERCISE 4 Calculating Flow Rate
1. 36 L/min
2. 17 L/min
3. 9 L/min
EXERCISE 5 Calculating Tidal Volume
1. 50 milliliters
2. 1666 milliliters
3. 1600 milliliters
Whitaker Answer keys-1
,EXERCISE 6 Calculating Inspiratory Time
1. 0.76 second
2. 0.34 second
3. 1.8 seconds
EXERCISE 7 Calculating Inspiratory Time When Desired Rate and I:E Ratio Are
Known
1. 0.86 second
2. 0.43 second
3. 1.3 seconds
EXERCISE 8 Determining Corrected Tidal Volume
1. 327 milliliters
2. 584 milliliters
3. 97.5 milliliters
EXERCISE 9 Calculating Mean Airway Pressure
1. 20.5 centimeters H2O
2. 10.5 centimeters H2O
3. 8.2 centimeters H2O
EXERCISE 10 Calculating Time Constants
1. 1.2 seconds
2. 1.8 seconds
3. 6.75 seconds
Whitaker Answer keys-2
,EXERCISE 11 Calculating Expiratory Time to Achieve a Desired Rate
1. 1.6 seconds
2. 0.4 second
3. 6 seconds
EXERCISE 12 Calculating Flow Rate on the Siemens Servo 900C Ventilator
1. 15 L/min
2. 24 L/min
3. 45 L/min
EXERCISE 13 Calculating Inspiratory Time on the Siemens Servo 900C Ventilator
1. 1.15 seconds
2. 1.75 seconds
3. 0.47 second
EXERCISE 14 Calculating Percent Solution
1. 0.225%
2. 0.41%
3. 2%
EXERCISE 15 Calculating the Dosage of Bicarbonate
1. 2.63 mEq
2. 9 mEq
3. 1 mEq
EXERCISE 16 Determining the Oxygen Index (OI)
1. 15.7
2. 12.7
3. 34.5
Whitaker Answer keys-3
, ANSWER KEYS TO CHAPTER POSTTESTS
CHAPTER 1 ANSWERS
1. B 10. B
2. A 11. D
3. B 12. B
4. B 13. A
5. C 14. C
6. D 15. D
7. C 16. B
8. A 17. D
9. B 18. C
CHAPTER 2 ANSWERS
1. D 10. B
2. A 11. C
3. A 12. A
4. C 13. C
5. B 14. C
6. D 15. B
7. A 16. D
8. D 17. A
9. B
Whitaker Answer keys-4
