Listening to your lungs can offer information to help your doctor determine a diagnosis. When there is a known risk factor, like heart disease or lung disease, it’s called secondary pulmonary hypertension. When the cause is unknown, the condition is called idiopathic or primary pulmonary hypertension. PH is diagnosed when that pulmonary artery pressure is measured at 25 millimeters of mercury (mm Hg) or greater at rest. Pulmonary hypertension is high blood pressure in the arteries that bring blood from the right side of the heart to the lungs. The location of the sound can help determine whether the source is heart failure, pulmonary fibrosis, pneumonia, or another heart or lung condition. Chronic obstructive pulmonary disease (COPD)Īn experienced doctor can distinguish between wet and dry lung crackles.Several diseases and conditions can cause lung crackles, including: “My lungs snap, crackle, and pop like Rice Krispies,” said one myPHteam member. Crackles are produced when closed portions suddenly open and allow air flow. In pulmonary fibrosis, there is scarring and thickening of the lung tissues. You may feel shortness of breath or like you are suffocating or drowning, especially when lying down.Ĭrackles may also be produced without fluid in the lungs. You may feel like you are running out of air, a condition called dyspnea. When lung crackles are caused by fluid in the lungs, you may experience symptoms similar to those of pulmonary edema, a condition caused by excess fluid in the lungs. When you breathe in, those liquid blockages or plugs rupture, creating a popping or bubbling noise as the air pushes through. Liquid blockages in small airways can make that sound. Lung crackles may indicate fluid in the lungs.
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