The deflections that occur on an ECG are labeled with the letters ____.
A. A, B, C, D, E, and F
B. P, Q, R, S, T, and U
C. H, I, J, K, and L
D. V, W, X, Y, and Z
E. M, N, O, P, and Q
B. P, Q, R, S, T, and U
The deflections on an ECG are labeled with the letters P, Q, R, S, T, and U.
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