Practice exercise (made-up values, not clinical guidance). The gauge on a size H oxygen cylinder reads 1450 psi. Its cylinder factor is 3.14 L/psi. How many litres V can be used before the safe residual of 200 psi is reached?
Practice exercise (made-up values, not clinical guidance). The gauge on a size H oxygen cylinder reads 1700 psi. Its cylinder factor is 3.14 L/psi. How many litres V can be used before the safe residual of 200 psi is reached?
Practice exercise (made-up values, not clinical guidance). A size D oxygen cylinder (factor 0.16 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.
Practice exercise (made-up values, not clinical guidance). A ventilated patient who meets the other Berlin criteria for ARDS has PaO₂ 79 mmHg (10.5 kPa) on 100% oxygen with a PEEP of 8 cmH₂O. Calculate the P/F ratio and click the ARDS severity.
Practice exercise (made-up values, not clinical guidance). A patient has Hb 169 g/L, SaO₂ 98%, PaO₂ 101 mmHg (13.5 kPa) and a cardiac output of 4.6 L/min. With CaO₂ = 1.34 × Hb (g/dL) × SaO₂ + 0.003 × PaO₂ (mmHg), find the oxygen delivery DO₂ = CaO₂ × CO × 10 in mL/min.
Practice exercise (made-up values, not clinical guidance). A patient with acute hypoxaemia and bilateral opacities, not explained by heart failure, has PaO₂ 6.6 kPa on 40% oxygen with a PEEP of 3 cmH₂O. Grade the ARDS severity with the Berlin definition. Click your answer.
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