A male patient has presented with the following results for spirometry and plasma Po2. What is your diagnosis? (Use your lecture notes to derive the normal range for these parameters. Also note that usually plasma O₂ is determined by saturation percentage, not Po2, but humour me here). Parameter Vital Capacity FEV₁ FVC Arterial Po2 Venous Poz Value 4340 ml 3310 ml 4120 ml 86 mmHg 134 mmHg

Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
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A male patient has presented with the following results for spirometry and plasma Po2. What is your diagnosis? (Use your lecture
notes to derive the normal range for these parameters. Also note that usually plasma O₂ is determined by saturation percentage,
not Po2, but humour me here).
Parameter
Vital Capacity
FEV₁
FVC
Arterial Po2
Venous Po2
COPD
Value
4340 ml
3310 ml
4120 ml
O Pulmonary fibrosis
Pulmonary oedema
86 mmHg
34 mmHg
O Methemoglobinaemia (causes a leftward shift in the oxygen-haemoglobin dissociation curve)
Transcribed Image Text:A male patient has presented with the following results for spirometry and plasma Po2. What is your diagnosis? (Use your lecture notes to derive the normal range for these parameters. Also note that usually plasma O₂ is determined by saturation percentage, not Po2, but humour me here). Parameter Vital Capacity FEV₁ FVC Arterial Po2 Venous Po2 COPD Value 4340 ml 3310 ml 4120 ml O Pulmonary fibrosis Pulmonary oedema 86 mmHg 34 mmHg O Methemoglobinaemia (causes a leftward shift in the oxygen-haemoglobin dissociation curve)
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