If you find the material on this website useful, you will find that the two books ACES for PACES and KEYS to SUCCESS in Medicine complement the material on these sites and will enhance your studying and revision

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BOF: 116

A 50-year-old male who is known to have chronic bronchitis presented to the accident and emergency department. After initial treatment he was sent up to the ward. His blood gases on admission to the ward were as follows:

pH 7.22

PaO₂ 14.4 kPa

PaCO₂ 18.8 kPa

The physical sign that alerted the examining clinician to this condition was:

a)    Tachycardia

b)      Pulsus paradoxus

c)      Flapping tremor

d)      Elevated JVP

e)      Fourth heart sound

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