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The Idaho Department of Health and Welfare has activated crisis standards of care in the Southwest, Central and South Central health districts. St. Luke’s is open and available to see patients, but you may experience delays at our ERs, hospitals and clinics. We appreciate your patience. Access info on COVID tests, vaccines, visitor policy, hospitalization data, and FAQs.

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Sputum

Sputum is a thick fluid that is produced in the lungs and in the airways that lead to the lungs. Sputum is different than saliva.

A person who has an infection or disease of the respiratory system may cough up sputum. Some diseases can cause pus, blood, or bacteria to show up in the sputum.

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