Intravenous Access

What Is Intravenous Access?

Intravenous (IV) access is a invasive clinical procedure where an over-the-needle catheter (14G to 24G) is inserted into a peripheral vein (cephalic, median cubital, saphenous) to establish direct circulatory access for fluid resuscitation and IV medication delivery.

Why Intravenous Access Matters on the Fireground

Rapid peripheral IV placement is critical for delivering crystalloid fluids in hypovolemic shock, cardiac arrest resuscitation drugs (Epinephrine, Amiodarone), and blood products. In trauma, large-bore IVs (14G/16G) allow rapid fluid infusers to deliver 500+ mL/min.

Relevant NFPA Standards

• NREMT Standards: National Registry of Emergency Medical Technicians Practice Standards
• NFPA 455: Standard for Emergency Medical Services (EMS)

Field Procedures & Tactical Steps

1. Apply tourniquet 4 to 6 inches proximal to the selected venipuncture site to engorge vein.
2. Clean skin site thoroughly with 70% alcohol or chlorhexidine prep pad using expanding circular motion.
3. Insert catheter needle bevel-up at a 15 to 30 degree angle until blood flashback is observed in hub.
4. Lower catheter angle parallel to skin, advance 2 mm further, then slide plastic cannula fully into vein while holding needle steady.
5. Release tourniquet, engage needle safety lock, dispose in sharps box, attach IV tubing, and secure with transparent dressing.

Common Context & Application

Performed by AEMTs and Paramedics on trauma calls, cardiac emergencies, shock, dehydration, and critical care transports.

Frequently Asked Questions about Intravenous Access