A member asked:

How do you differentiate between sputum coming from chest/lungs and sputum from post nasal drip/sinuses. i have constant sticky mucus with blood.

A doctor has provided 1 answer
Dr. Michael Dugan answered

Specializes in Hematology

Can be difficult: If you can cough it up likely coming from the lower tract, and if you can blow it out of your nose it is a nasal/sinus process.

Answered 10/9/2015

5.3k views

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