UNDERSTANDING THE USE OF AN ARTERIAL LINE



What is an arterial line?

An Arterial line is a pressure line which is inserted into the artery.
Typically, the radial at the wrist is used. The brachial artery at the
inside of the elbow joint or the femoral in the groin area may also
 be used.

What are some of the uses of the arterial line?

Uses of the line include:
- Constant blood pressure monitoring
- Lab values can be done without always sticking the patient
Patients who are critically ill and require frequent blood draws,
may have an arterial line inserted by the doctor. 



In the image above , this critically ill patient may
have an arterial line put in place. Learn more:
Nick in the ICU

Helpful Hints:
- Monitor tracing, per protocol
- Check site for any disconnection or hematoma formation
- Change and date tubing, per protocol, to prevent infection
- Check pressure bag to ensure enough fluid
- Date and time tubing; change per hospital's protocol

What is the phlebostatic axis?

The phlebostatic axis is used as a reference point when zeroing
 pressure lines. CVP, PA, and arterial lines are usually zeroed
 daily or per ICU protocol. The new nurse should familiarize
 herself with this landmark.




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