By reading this article, you should be able to
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Describe the three cardiopulmonary variables used most commonly in perioperative medicine: peak oxygen uptake (V˙o2 peak), anaerobic threshold (AT) and ventilatory efficiency (V˙e/V˙co2) at AT.
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Detail the 6-min walk test (6MWT), incremental shuttle walk test (ISWT) and cardiopulmonary exercise testing (CPET).
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Analyse the accuracy, applications and limitations of each method.