The result is an organized contraction that pumps blood most efficiently. This is called sinus rhythm. Sometimes, the electrical stimulus gets caught in a feedback loop. Or, it originates from ...

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Be sure to run long enough rhythm strips to appreciate rate changes or to catch the onset or offset of tachycardia. Sinus tach and most SVTs have only one P wave for each QRS complex. They may or ...

Sinus pressure can cause dizziness. Sinus-related dizziness (described as lightheadedness, faintness, or loss of balance) is a fairly common problem experienced with sinus infections, allergies, or ...

In the first 30 minutes that I’m seated on the patio at O’Brien’s Pub, the following songs play: “Paradise City,” by Guns N’ Roses; “How You Remind Me,” by Nickelback; and ...