4 year old boy presented with recurrent chest infections. Sweat chloride test was done, showed values of 36 and 42. What is the next best investigation to confirm the diagnosis ?
4 year old boy presented with recurrent chest infections. Sweat chloride test was done, showed values of 36 and 42. What is the next best investigation to confirm the diagnosis ?
💡 Explanation
4 year old boy presented with recurrent chest infections. Sweat chloride test was done, showed values of 36 and 42. What is the next best investigation to confirm the diagnosis ?
✓ Correct Answer: C. Transepithelial nasal potential difference
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