1. PHYSIOLOGICAL SCIENCE PROBLEM
An arterial line provides a method of constantly measuring a critically ill patient's .
The care of arterial cannulas and their potential risks will be.
discussed.
.
Introduction.
The aim of this assignment is to establish the meaning of arterial cannulation and to .
discuss its importance in the monitoring of the critically ill patient. The care of the .
patient with an arterial cannula will be described. The possible complications and .
risks associated with arterial lines will be analysed and whether the benefits of .
haemodynamic monitoring outweighs these risks.
What is an Arterial Line?.
The critically ill patient can often have massive abnormalities of their blood pressure; an arterial line provides a method of constantly measuring blood pressure. This may be essential to the stabilisation of the patient's condition. Darovic and Franklin (1999) describe how the mean arterial pressure demonstrates the average force for the blood movement in the arterial system during the cardiac cycle. The arterial line is a cannula placed directly into an artery, usually the radial artery, which can provide clinicians with a means of carrying out continuous invasive mean arterial pressure monitoring. The cannula is attached to a transducer and monitor, which will provide an electronic display of numerical values of the patient's blood pressure measurement, arterial waveforms and mean arterial pressure. .
Indications for using an Arterial Line.
Invasive monitoring of the arterial circulation of the critically ill patient provides us with continuous blood pressure measurements and provision of access for blood analysis (Durbin 2003). .
Jevon et al (2002) point out that the necessity for continuous monitoring of arterial blood pressure as an indication for the insertion of an arterial line. Mean arterial pressure should be used in the haemodynamic assessment of the critically ill patient because it is an accurate pointer of the coronary and cerebral perfusion (Darovic and Franklin 1999).
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