Objectives
• Components of an arterial blood pressure monitoring system
• Indications of an arterial blood pressure monitoring system
• Care for a client with an arterial blood pressure monitoring
system
Slide 2
Arterial Blood Pressure
Monitoring (Continued)
• Invasive technique to monitor arterial blood pressure
• Sites
oRadial artery
________prior to insertion to verify collateral circulation in
the extremity
oBrachial artery
oFemoral artery
Components of Arterial
Blood Pressure Monitoring
• Invasive intravascular catheter
oPlaced in artery
• Pressure tubing and flush system
oKeeps catheter patent
oPressure bag (300 mm Hg)
oFlush solution
Components of Arterial
Blood Pressure Monitoring (Continued)
• Transducer
oConverts physiologic events into electrical signals
• Amplifier
oPicks up signal and transmits to display through cable
Components of Arterial
Blood Pressure Monitoring (Continued)
• Monitor display
oWaveforms
oPressure values
oData can be retrieved or recorded
Arterial Blood Pressure Waveform
Accuracy in Arterial Blood
Pressure Monitoring
• Level = phlebostatic axis
o4th intercostal space, midaxillary line
oApproximate level of right atrium
• Zero reference
oZeroing stopcock is leveled at phlebostatic axis and “zeroed”
Accuracy in Arterial Blood
Pressure Monitoring (Continued)
Locating the phlebostatic axis.
Diagram of Entire System
Arterial Blood Pressure
Monitoring Indications
__________________________
Frequent ABGs or laboratory draws
__________________________
Monitor treatment of severe hypertension/hypotension
Arterial Blood Pressure
Monitoring Assessment
• Check daily for necessity
• Insertion site
• Neurovascular status distal to insertion site hourly
Arterial Blood Pressure
Monitoring Complications
• Major complications
oThrombosis
oEmbolism
o___________
oInfection