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 s630 mLf = 16/min · V̇E = ?

Practice exercise (made-up values, not clinical guidance). A patient breathes 16 times a minute with a tidal volume of 630 mL. Find the minute ventilation V̇E in L/min.

VT 630 mL16/min
V̇E = L/min
2.Easy
60 s680 mLf = 32/min · V̇E = ?

Practice exercise (made-up values, not clinical guidance). A patient breathes 32 times a minute with a tidal volume of 680 mL. Find the minute ventilation V̇E in L/min.

VT 680 mL32/min
V̇E = L/min
3.Medium
500psiHf = 3.14 L/psi8 L/minresidual 200 psit = ? min

Practice exercise (made-up values, not clinical guidance). A size H oxygen cylinder (factor 3.14 L/psi) reads 500 psi and runs at 8 L/min. Keeping a safe residual of 200 psi, how many minutes t will it last? Round down to a whole minute.

500 psif = 3.14 L/psi8 L/min200 psi
t = min
4.Medium
700psiEf = 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 700 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.

700 psif = 0.28 L/psi6 L/min200 psi
t = min
5.Hard
60 kg153 cm♀6 mL/kg PBWVT​ = ? mL

Practice exercise (made-up values, not clinical guidance). A ventilated woman is 153 cm tall and weighs 60 kg. Lung-protective ventilation is set at 6 mL per kg of predicted body weight. Using PBW = 45.5 + 0.91 × (height cm − 152.4) kg, find the tidal volume VT to the nearest mL.

153 cm60 kg6 mL/kg
VT = mL
6.Hard
66 kg158 cm♀6 mL/kg PBWVT​ = ? mL

Practice exercise (made-up values, not clinical guidance). A ventilated woman is 158 cm tall and weighs 66 kg. Lung-protective ventilation is set at 6 mL per kg of predicted body weight. Using PBW = 45.5 + 0.91 × (height cm − 152.4) kg, find the tidal volume VT to the nearest mL.

158 cm66 kg6 mL/kg
VT = mL

Answer key

  1. 1. V̇E = 10.08 L/min
  2. 2. V̇E = 21.76 L/min
  3. 3. t = 117 min
  4. 4. t = 23 min
  5. 5. VT = 276 mL
  6. 6. VT = 304 mL

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