While assessing vital signs the nurse determines the regularity of a patient's cardiac rhythm.Which cardiac cycle measurement will the nurse use regularity to calculate?

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After the rhythm regularity is determined,the heart rate is counted.For regular rhythms,use the method that is very accurate by counting the number of small boxes between two R waves and divide that number into 1500.This gives the bpm,because 1500 small boxes equal 1 minute.B.C.D.Regularity is not used to calculate ST segment,P-R interval,or QRS interval.

While Assessing Vital Signs the Nurse Determines the Regularity of a Patient's