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.

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1.Easy
60 s360 mLf = 19/min · V̇E = ?

Practice exercise (made-up values, not clinical guidance). A patient breathes 19 times a minute with a tidal volume of 360 mL. Find the minute ventilation V̇E in L/min.

VT 360 mL19/min
V̇E = L/min
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
1450psiHf = 3.14 L/psi2 L/minresidual 200 psit = ? min

Practice exercise (made-up values, not clinical guidance). A size H oxygen cylinder (factor 3.14 L/psi) reads 1450 psi and runs at 2 L/min. Keeping a safe residual of 200 psi, how many minutes t will it last? Round down to a whole minute.

1450 psif = 3.14 L/psi2 L/min200 psi
t = min
4.Medium
550psiDf = 0.16 L/psi5 L/minresidual 200 psit = ? min

Practice exercise (made-up values, not clinical guidance). A size D oxygen cylinder (factor 0.16 L/psi) reads 550 psi and runs at 5 L/min. Keeping a safe residual of 200 psi, how many minutes t will it last? Round down to a whole minute.

550 psif = 0.16 L/psi5 L/min200 psi
t = min
5.Hard
700psiEf = 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 700 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 min700 psif = 0.28 L/psi200 psi
Q = L/min
6.Hard
1550psiEf = 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 1550 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 min1550 psif = 0.28 L/psi200 psi
Q = L/min

Answer key

  1. 1. V̇E = 6.84 L/min
  2. 2. V = 532 L
  3. 3. t = 1962 min
  4. 4. t = 11 min
  5. 5. Q = 3 L/min
  6. 6. Q = 9 L/min

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