Practice exercise (made-up values, not clinical guidance). The gauge on a size H oxygen cylinder reads 2150 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 patient breathes 10 times a minute with a tidal volume of 400 mL. Find the minute ventilation V̇E in L/min.
Practice exercise (made-up values, not clinical guidance). A size E oxygen cylinder (factor 0.28 L/psi) reads 1050 psi and runs at 3 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 size E oxygen cylinder (factor 0.28 L/psi) reads 650 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.
Practice exercise (made-up values, not clinical guidance). A ventilated man is 175 cm tall and weighs 120 kg. Lung-protective ventilation is set at 6 mL per kg of predicted body weight. Using PBW = 50 + 0.91 × (height cm − 152.4) kg, find the tidal volume VT to the nearest mL.
Practice exercise (made-up values, not clinical guidance). A patient on high-flow nasal oxygen has SpO₂ 91% on FiO₂ 0.8 and a respiratory rate of 37/min. Find the ROX index ROX = (SpO₂/FiO₂)/RR, with SpO₂ in percent and FiO₂ as a fraction. Round to two decimal places.
Full step-by-step solutions: practise this topic on examproblems.com.