Sputum KOH Smear

Sputum KOH Smear is a laboratory test used to detect fungal infections in the respiratory system. It involves analyzing a sputum sample using potassium hydroxide (KOH) to identify fungal elements under a microscope. This test is crucial for diagnosing conditions such as pulmonary aspergillosis, candidiasis, and other respiratory fungal infections.

The test is recommended for individuals experiencing persistent cough, chest pain, difficulty breathing, unexplained fever, or blood in sputum. It helps detect fungal infections that may not be identified through routine bacterial culture tests. Patients with weakened immune systems, such as those with HIV, diabetes, or undergoing chemotherapy, are at higher risk and may require this test for early diagnosis.

A sputum sample is collected from the patient, usually in the morning, and mixed with KOH to dissolve background material, making fungal elements more visible under a microscope. No fasting is required for this test. The results help determine the presence of fungal infections and guide further treatment options, such as antifungal medications.

This test is suitable for all age groups, especially those with respiratory issues or suspected fungal infections. Since respiratory fungal infections can mimic bacterial or viral conditions, consulting a doctor is essential for accurate diagnosis and appropriate treatment planning.