Archive for the ‘asthma health care’ Category

Typoxemia is a common occurrence in patients with asthma, a fact attributed to ventilation-perfusion (Va/Q) inequality secondary to uneven airway narrowing. Recent studies measuring continuous distributions of Va/Q ratios have detected considerable blood flow perfusing areas in the lung which have low Va/Q ratios. Uneven distribution of ventilation is undoubtedly a major factor causing Va/Q […]