Heart Rate(HR) : Though Normal is 60-100 Beats per minute, in questions it is related to the nurse’s understanding of the underlying causes Tachycardia is >90. Since tachycardia is the Boat coming (acute situation) it is important to understand that the heart is functioning normally but is responding to a problem outside the heart.RULE NUMBER 2: Never ignore heart rates in questions, since it is there for a reason. This DATA directs the nurse to assess or implement or acknowledge it as a normal