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How Can Sputum Sample Analysis Aid in Diagnosing Eosinophilic Asthma?

Published on Sep 1, 2023
This is an edited excerpt from the following course: Objective Measures of Asthma

Question

How can sputum sample analysis aid in diagnosing eosinophilic asthma?

Answer

Sputum sample analysis can aid in diagnosing eosinophilic asthma by revealing blood-tinged sputum containing eosinophilic crystals. The presence of these crystals is indicative of the eosinophil-driven nature of the condition and can be observed under a microscope. This additional information helps confirm the presence of eosinophilic asthma in a patient with asthma. If a patient's eosinophil count exceeds 1,500 microliters upon blood analysis, it may raise concerns about other eosinophilic pulmonary conditions, such as allergic bronchopulmonary aspergillosis. Healthcare professionals should consider this possibility and take it into account when diagnosing and managing the patient's condition.

  • Kevin Collins

    PhD, RRT, RPFT, AE-C

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