Interface pressure measurements during ambulance journeys
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Published on: March 21, 2013
1Tissue Viability Service, Nottingham, UK.
Abstract:
This study investigated the risk of developing pressure damage associated with surfaces used in ambulances. One subject's journey in an ambulance was evaluated to identify the intensity of interface pressures (in mmHg) at particularly susceptible areas (the ischial tuberosities, sacrum and heels) while the vehicle was both stationary and moving. Interface pressures measured on a standard ambulance stretcher and a spinal board were also compared. Results indicate that the pressure readings obtained are likely to lead to capillary occlusion with the potential development of pressure damage. Manufacturers of ambulances therefore need to consider incorporating pressure-relieving surfaces in seats and stretchers in the future.
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Equipments Used To Measure Blood Pressure
This invasive approach involves cannulating a peripheral artery. During each cardiac contraction, pressure generates mechanical motion within the catheter, transmitted through rigid, fluid-filled tubing to a transducer. This transducer converts mechanical motion into electrical signals displayed as waveforms on a monitor. An automatic flushing system prevents blood backflow. Due to the potential risk of unexpected arterial blood loss, this method is primarily used in intensive...
Special considerations while measuring blood pressure
Monitoring Both Arms:
Monitoring BP in both arms during the initial assessment is advisable, as the systolic value may differ by five to ten mm Hg between arms. For subsequent BP assessments, use the arm with the higher reading.
Sites for measuring blood pressure
The Brachial Artery: Primary Site for Blood Pressure Measurement
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Assessing Blood pressure using a doppler ultrasound
Pre-Procedural Guidelines for Doppler Ultrasound Blood Pressure Assessment:
Preparation of Equipment:
Measurement of Blood Pressure