In CHF, the heart is unable to pump blood efficiently, leading to increased pressure in the pulmonary veins. This increased pressure causes fluid to leak out of the capillaries and into the interstitial spaces of the lungs, resulting in interstitial edema. Kerley B lines are a radiographic manifestation of this fluid accumulation.
Elena walked back to Mr. Henderson’s room. He was sitting upright, gasping, refusing the oxygen mask. “I just need to catch my breath,” he wheezed. kerley b lines chf