Pacing in Demand Mode
9650-0806-01 Rev. D
Propaq MD Operator’s Guide
18–5
WARNING!
Determination of electrical capture should only be performed by viewing the ECG trace
on the Propaq MD display with its ECG connection directly attached to the patient. Use
of other ECG monitoring devices might provide misleading information due to the
presence of pacer artifacts.
Mechanical capture is assessed by palpation of the peripheral pulse.
To avoid mistaking muscular response to pacing stimuli for arterial pulsations, use ONLY the
following locations for palpating pulse during pacing:
•
femoral artery
•
right brachial or radial artery
Effective pacing
Changing ECG leads and size can sometimes be helpful in determining capture.
Note:
The shape and size of the paced ECG waveforms can vary depending on the ECG lead
configuration chosen; variation from patient to patient can be expected.
9 Determine Optimum Threshold
The ideal pacer current is the lowest value that maintains capture — it is usually about 10%
above threshold. Typical threshold currents range from 40 to 80 mA. Location of the hands-free
or therapy electrodes affects the current required to obtain ventricular capture. Typically the
lowest threshold is obtained when the position of the electrodes provides the most direct current
pathway through the heart while avoiding large chest muscles. Lower stimulation currents
produce less skeletal muscle contraction and are better tolerated.
Summary of Contents for Propaq MD
Page 1: ...Propaq MD Operator s Guide 9650 0806 01 Rev D...
Page 40: ...CHAPTER 1 GENERAL INFORMATION 1 28 www zoll com 9650 0806 01 Rev D...
Page 60: ...CHAPTER 2 PRODUCT OVERVIEW 2 20 www zoll com 9650 0806 01 Rev D...
Page 74: ...CHAPTER 4 TRENDS 4 4 www zoll com 9650 0806 01 Rev D...
Page 84: ...CHAPTER 5 ALARMS 5 10 www zoll com 9650 0806 01 Rev D...
Page 94: ...CHAPTER 6 MONITORING ECG 6 10 www zoll com 9650 0806 01 Rev D...
Page 104: ...Chapter 7 Monitoring Respiration Resp and Heart Rate HR 7 10 www zoll com 9650 0806 01 Rev D...
Page 120: ...CHAPTER 8 MONITORING NON INVASIVE BLOOD PRESSURE NIBP 8 16 www zoll com 9650 0806 01 Rev D...
Page 154: ...CHAPTER 11 MONITORING INVASIVE PRESSURES IBP 11 10 www zoll com 9650 0806 01 Rev D...
Page 160: ...CHAPTER 12 MONITORING TEMPERATURE 12 6 www zoll com 9650 0806 01 Rev D...
Page 186: ...CHAPTER 14 12 LEAD ECG INTERPRETIVE ANALYSIS 14 16 www zoll com 9650 0806 01 Rev D...
Page 212: ...CHAPTER 17 ADVISORY CPR PROTOCOL DEFIBRILLATION 17 6 www zoll com 9650 0806 01 Rev D...
Page 222: ...CHAPTER 18 EXTERNAL PACING 18 10 www zoll com 9650 0806 01 Rev D...
Page 240: ...CHAPTER 21 PATIENT DATA 21 6 www zoll com 9650 0806 01 Rev D...
Page 268: ...CHAPTER 22 COMMUNICATIONS 22 28 www zoll com 9650 0806 01 Rev D...
Page 284: ...CHAPTER 24 MAINTENANCE 24 12 www zoll com 9650 0806 01 Rev D...
Page 326: ...ACCESSORIES B 6 www zoll com 9650 0806 01 Rev D...