User's Manual

Ultraview Care Network
15-16
Tachycardia Alert
The monitor analyzes the fetal heart rate for tachycardia using the following
algorithms. The heart rate is divided into eight groups of 20-seconds each.
Type 1
An alert will activate if:
•Group C is less than 180 bpm, and
•Groups F, G, and H are each greater than or equal to 190 bpm.
Figure 15-6: Type 1 tachycardia alert
Type 2
An alert will activate if Group A is less than the tachycardia limit set by the
operator, and Groups B, C, D, E, F, G, and H are each greater than or equal to the
tachycardia limit set by the operator. The example shown below has the limit set
at 180 bpm.
Figure 15-7: Type 2 tachycardia alert
!
• The most recent Heart Rate Group is H; Heart Rate Group A
must not be zero.