Summary:
Physiological responses to incremental CPET in a 53-year-old woman, a long-term smoker (68 pack-years), presenting with severe dyspnoea (Medical Research Council dyspnoea scale score of 4). Pulmonary function tests showed an FEV1 of 1.02 L (53% predicted), TLC of 113% pred, RV of 165% pred and DLCO of 53%. Note evidence of mechanical ventilatory impairment and, secondarily, gas-exchange impairment. See text for further details. For explanations of graphs, see figure 1. Pred: predicted; LLN: lower limit of normal; S: slope; RER: respiratory exchange ratio; I: intercept; ULN: upper limit of normal; RR: respiratory rate.
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Figure
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Normal
Slug:
F30
Highwire: Type:
fragment
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HighWire: Journal/Corpus Code:
ersbk
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ersbk;9781849840965/1/chapter_2/F30
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ersbk;9781849840965/1/chapter_2/F30
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Contributors:
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