Cannulation of a peripheral artery (usually radial) for continuous BP and repeat ABGs.
Indications
- • Hemodynamic instability
- • Vasopressor titration
- • Frequent ABGs
Contraindications
- ⚠ Failed Allen's test
- ⚠ Local infection
- ⚠ Raynaud's / severe PVD
Equipment
- • 20-G arterial catheter
- • Pressure transducer
- • 500 mL NS + pressure bag
- • Sterile kit
Positioning
- • As appropriate for the procedure and patient comfort.
Consent
- • Explain indication, benefits, alternatives
- • Explain risks & complications
- • Obtain written/verbal consent as per SOP
- • Document consent
Universal precautions
- • Hand hygiene
- • PPE — gloves, mask, eye protection
- • Aseptic technique
- • Sharps safety
- • Verify patient identity & site
Step-by-step (0/6)
Tap to complete
Confirm ulnar collateral flow.
Immediate complications
- ⚠ Hematoma
- ⚠ Distal ischemia
- ⚠ Nerve injury
Delayed complications
- • Thrombosis
- • Infection
Recognition
- • Cold pale hand
- • Weak trace
Initial management
- • Remove immediately
Prevention
- • Allen's test
- • Aseptic technique
Post-procedure observation
- • Vitals q15min × 1h then hourly
Monitoring
- • Site inspection
- • Symptom review
Documentation
- • Procedure note
- • Consent
- • Findings
Patient instructions
- • Report pain, bleeding, fever, worsening symptoms
Educational bedside guide. Perform only under supervision until competent. Follow local SOPs and consent policy.
