User Manual
CLINICAL REFERENCE TOOLS
254 PatientNet Operator’s Manual, v1.04, 10001001-00X, Draft
All information contained herein is subject to the rights and restrictions on the title page.
Central Station Clinical Calculations
Heart Rate Accuracy
Ambulatory Patients
The heart rate is based on a tracked six-beat average.
New heart rate = (current rate - current rate/6) + (instantaneous rate/6)
PVC Count
The PVC count is the number of PVCs (arrhythmia V calls) in the last 60 seconds.
Central Station Beat Annotations
PatientNet Arrhythmia Software V1.05 Annotations
Beat Label Description
N Normal or Dominant
Q Aberrant Normal
q First Occurrence of Aberrant Normal
A Premature Normal or Premature Supraventricular (SVE)
V Premature Ventricular Ectopic (PVC)
X Not Classified Due to Bad Samples (RF drop out) in QRS Region
? Unknown (Noise or First Occurrence of PVC Morphology)