Atrial Fibrillation ECG Markers | Nursing School Review

19 Sept 2025 · 1 min

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In this brief instructional video, the speaker outlines two key electrocardiogram (ECG) markers used to identify atrial fibrillation (AFib) for NCLEX and nursing school examinations. First, the absence of a distinct P wave indicates AFib. Second, the baseline between QRS complexes appears as a scribbled, irregular line rather than a smooth rhythm. The instructor advises students to trace the ECG strip with a finger to locate any P wave or other identifiable markers, reinforcing a hands‑on study technique. The video concludes by directing viewers to the Nursing SOS shop for med‑surg flashcards that further cover these concepts.

Chapters

Here are two ECG markers to look for for atrial fibrillation on an ECG for the NCLEX or your nursing school exams, you're going to want to look for a P wave. If there is no P wave, it could be atrial fibrillation. So in atrial fibrillation or afib, there's no P wave and it also looks like a scribbled line between the QRS complexes. So what you're going to see is just kind of scribble up and down. There's no distinct P wave. So that is what you're going to want to look for. Anyt looking at an ECG or you get an ECG question on the NCLEX or your nursing school exams. Trace it with your finger. Find that P wave if there is one, and then that QRS and the st. So trace it with your finger. See if you can find a P wave or any identifiable marker. You can find all these med surg flashcards inside the nursing SOS shop.