Oxygen therapy & respiratory calculations worksheet with answers

Free printable Oxygen therapy & respiratory calculations worksheet: 6 problems from easy to exam level, with an answer key. Print it or save it as a PDF.

New worksheetPractise online with hints

For teachers: free to print, copy and use in class. Every new worksheet has new values and its own answer key. A link to ExamProblems on your course page is appreciated.

Name: ____________________   Date: ____________

1.Easy
1100psiDf = 0.16 L/psiresidual 200 psiV = ? L

Practice exercise (made-up values, not clinical guidance). The gauge on a size D oxygen cylinder reads 1100 psi. Its cylinder factor is 0.16 L/psi. How many litres V can be used before the safe residual of 200 psi is reached?

1100 psif = 0.16 L/psi200 psi
V = L
2.Easy
2100psiEf = 0.28 L/psiresidual 200 psiV = ? L

Practice exercise (made-up values, not clinical guidance). The gauge on a size E oxygen cylinder reads 2100 psi. Its cylinder factor is 0.28 L/psi. How many litres V can be used before the safe residual of 200 psi is reached?

2100 psif = 0.28 L/psi200 psi
V = L
3.Medium
PaO₂ 104 mmHg · FiO₂ 0.6 · PEEP 12 cmH₂O0100200300400500P/F (mmHg)above 300: no ARDS grademildmoderatesevere

Practice exercise (made-up values, not clinical guidance). A ventilated patient who meets the other Berlin criteria for ARDS has PaO₂ 104 mmHg (13.9 kPa) on 60% oxygen with a PEEP of 12 cmH₂O. Calculate the P/F ratio and click the ARDS severity.

PaO₂ 104 mmHg (13.9 kPa)FiO₂ 60%PEEP 12 cmH₂O
  1. 1above 300: no ARDS grade
  2. 2mild
  3. 3moderate
  4. 4severe
4.Medium
2050psiEf = 0.28 L/psi6 L/minresidual 200 psit = ? min

Practice exercise (made-up values, not clinical guidance). A size E oxygen cylinder (factor 0.28 L/psi) reads 2050 psi and runs at 6 L/min. Keeping a safe residual of 200 psi, how many minutes t will it last? Round down to a whole minute.

2050 psif = 0.28 L/psi6 L/min200 psi
t = min
5.Hard
1950psiEf = 0.28 L/psi40 minresidual 200 psiQ = ? L/min

Practice exercise (made-up values, not clinical guidance). A transfer will take 40 minutes. The size E cylinder (factor 0.28 L/psi) reads 1950 psi. Keeping a safe residual of 200 psi, what is the highest whole-number flow Q in L/min that lasts the whole transfer?

40 min1950 psif = 0.28 L/psi200 psi
Q = L/min
6.Hard
750psiEf = 0.28 L/psi90 minresidual 200 psiQ = ? L/min

Practice exercise (made-up values, not clinical guidance). A transfer will take 90 minutes. The size E cylinder (factor 0.28 L/psi) reads 750 psi. Keeping a safe residual of 200 psi, what is the highest whole-number flow Q in L/min that lasts the whole transfer?

90 min750 psif = 0.28 L/psi200 psi
Q = L/min

Answer key

  1. 1. V = 144 L
  2. 2. V = 532 L
  3. 3. moderate
  4. 4. t = 86 min
  5. 5. Q = 12 L/min
  6. 6. Q = 1 L/min

Full step-by-step solutions: practise this topic on examproblems.com.