A premature atrial contraction (PAC) occurs when a focus in the atrium (not the SA node), generates an action potential before the next scheduled SA node action potential. There are four main ...
The Federal Election Commission has dismissed a complaint that alleged iHeartMedia made nearly $1 million in podcast-related contributions to a super PAC supporting Senator Ted Cruz (R-Tex.) ...
Each cell in your body relies on precise communication with other cells to function properly. At the center of this process are the molecular switches ...
There are four main characteristics of PACs: Premature, occurring earlier than expected if measured against previous P-P intervals. Ectopic, originating outside of the SA node, and thus ...
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