Troubleshooting a failed arterial line (A-line) requires a systematic approach to identify whether the issue is mechanical, anatomical, or clinical. When a line "fails," it typically manifests as a loss of waveform, inability to flush, or inaccurate pressure readings. 🛠️ Mechanical Troubleshooting
: Usually due to excessive tubing length or small-bore catheters. Fix : Shorten tubing or remove unnecessary stopcocks. 🩺 Clinical & Anatomical Fixes HOW TO FIX FAILED ARTERIAL LINE
: Re-level the transducer at the phlebostatic axis (4th intercostal space, mid-axillary line) and re-zero to atmospheric pressure. 📉 Waveform Issues Troubleshooting a failed arterial line (A-line) requires a
: 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. Fix : Shorten tubing or remove unnecessary stopcocks
The shape of the waveform provides clues to the specific failure mode.
: Look for kinks in the tubing or a disconnected cable.