It depends. If you are simply assessing rate and rhythm, the best (and most accurate) technique is to
count the pulse at the wrist for 30 seconds, and then double the figure. Alternatively, you could count the
apical rate, which is more accurate in situations of pronounced tachycardia, especially atrial fibrillation
(where pulse deficit commonly occurs). In this case, counting 60 seconds may further improve accuracy.
Finally, if you want to assess the characteristics of the waveform, then you should assess the pulse of a central artery.
count the pulse at the wrist for 30 seconds, and then double the figure. Alternatively, you could count the
apical rate, which is more accurate in situations of pronounced tachycardia, especially atrial fibrillation
(where pulse deficit commonly occurs). In this case, counting 60 seconds may further improve accuracy.
Finally, if you want to assess the characteristics of the waveform, then you should assess the pulse of a central artery.
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