How To Fix Failed Arterial Line Apr 2026

The shape of the waveform provides clues to the specific failure mode.

: If the initial puncture fails, some clinicians use the "through-and-through" method—piercing both walls and slowly withdrawing until pulsatile flow returns. ⚠️ When to Remove the Line The line should be discontinued immediately if you observe: The Arterial Line Assessment & Troubleshooting! HOW TO FIX FAILED ARTERIAL LINE

: Ensure it is inflated to 300 mmHg ; low pressure causes blood backflow or waveform damping. The shape of the waveform provides clues to

: For difficult access where a line has failed due to a kink or short length, it may be exchanged over a micropuncture wire for a longer catheter under sterile conditions. : Ensure it is inflated to 300 mmHg

: Re-level the transducer at the phlebostatic axis (4th intercostal space, mid-axillary line) and re-zero to atmospheric pressure. 📉 Waveform Issues

Before assuming the catheter has failed, check the external components.

: Give a "fast flush" to clear small clots or air bubbles.