Virtually all patients with asthma have hypoxemia during acute exacerbations, and the more severe the obstruction, the lower the arterial oxygen tension becomes. It should be administered in high concentrations as there is little risk of promoting hypercapnia because respiratory drive is well maintained. The concentration of oxygen administered should be determined by pulse oximetry and regular arterial blood gases. Humidification of the inspired gas is desirable to lessen the chance of cold-induced bronchoconstriction and to minimize inspissated secretions.

Coping with Asthma

Coping with Asthma

If you suffer with asthma, you will no doubt be familiar with the uncomfortable sensations as your bronchial tubes begin to narrow and your muscles around them start to tighten. A sticky mucus known as phlegm begins to produce and increase within your bronchial tubes and you begin to wheeze, cough and struggle to breathe.

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