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Pacer pulse, Rejection – Welch Allyn 901061 Propaq LT Vital Signs Monitor - User Manual User Manual

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Directions for Use

Specifications

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Pacer pulse rejection

Does not count as heartbeats approximately 95% of pacemaker pulses within pacer
pulse detection range*, with or without AAMI (EC 13

-

2002) tails of 4, 8, 15, 25, 50, 75,

or 100 ms decay time constant, whose tail amplitudes meet either EC 13’s method A or
method B criteria for single pacer pulses, or A

-

V sequential pulses (150 ms and 250 ms

separation), all per AAMI tests 4.1.4.1 and 4.1.4.2.
* Rejects method B overshoots for [pulse width] X [pulse amplitude] < 3 X 10

-4

V-sec.

Pacer pulse detector minimum
slew rate detection threshold

2.5 V/sec RTI, per EC13:2002, 4.1.4.3

ECG trace duration

3 seconds in single or double trace display
6 seconds in cascade

Response to Irregular Rhythm (AAMI specification EC13

-

2002, 4.1.2.1. Part e.)

Ventricular bigeminy (VB)

78 to 82 beats/min (80 beats/min expected)

Slow alternating VB

57 to 65 beats/min (60 beats/min expected)

Rapid alternating VB

118 to 123 beats/min (120 beats/min expected)

Bidirectional systole

88 to 93 beats/min (90 beats/min expected)

1 mV ventricular tachycardia

197 to 198 beats/min (206 beats/min expected)

2 mV ventricular tachycardia

193 to 197 beats/min (195 beats/min expected)