Page 44 - AACN Essentials of Critical-Care Nursing Pocket Handbook, Second Edition
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6 seconds (A) Heart rate determination for a regular rhythm using little boxes between two R waves. One RR interval is marked at the top of the ECG paper. There are 25 little boxes between these two R waves. There are 1500 litt
R In: Woods SL, Froelicher ES, Motzer SU, eds. Cardiac Nursing 3rd ed. Philadelphia, PA: JB Lippincott; 1995:295.)
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Heart Rate Determination A B
3.6
