10 COPD Symptoms
Reviewed: Dr. Gromatzky
Symptom #5: Loss of Consciousness
Since COPD is a condition that causes restrictive airflow, it results in hypoxia. In acute exacerbation of COPD, cough syncope can occur. Syncope, or fainting, occurs when there is loss of muscle strength and consciousness followed by spontaneous recovery.
It occurs due to a decrease in blood flow to the brain and is often associated with sweating, pallor, blurry vision, nausea, and light-headedness. Vigorous coughing can also lead to a brief loss of consciousness.
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