Acidosis

Published on 23/05/2015 by admin

Filed under Internal Medicine

Last modified 23/05/2015

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Respiratory Acidosis

Respiratory acidosis is caused by CO₂ retention due to inadequate pulmonary ventilation (↓ pH,↑pCO₂). Compensatory mechanisms are:

■ ↑ HCO₃⁻ by bicarbonate buffer system

■ ↓ H⁺ by kidneys (can take several days).

Causes (Any Cause of Hypoventilation)

Cns Depression

• Head injury

• Drugs, e.g. opiates, anaesthetics

• Coma

• Encephalitis

Neuromuscular Disease

• Myasthenia gravis

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