IV Therapy Guide: Administration and Complication Management

IV Therapy Fundamentals: Vascular Access Essentials

Intravenous therapy provides direct access to bloodstream for medication administration, fluid replacement, and blood transfusion. Proper insertion technique and maintenance prevents complications. Understanding catheter types and indications guides appropriate selection.

IV Therapy Facts:

• 50-80% of hospitalized patients require IV access
• Catheter-related infections affect 200,000+ patients annually
• Catheter removal within 48-72 hours reduces infection risk
• Proper maintenance technique prevents 50% of complications
• Peripheral lines typically last 3-5 days without complications

IV Access Types: Selecting Appropriate Vascular Access

Peripheral IV Catheters

• Gauge: 20-22G typical, 18G for rapid infusion/blood transfusion
• Locations: Hands, forearms, feet, external jugular vein
• Advantages: Easy insertion, lower infection risk, patient comfortable
• Limitations: Cannot infuse viscous solutions, irritating drugs
• Duration: Replace every 72-96 hours or per hospital protocol

Central Venous Catheters

• Placement: Superior/inferior vena cava (above heart)
• Types: PICC (peripherally inserted), CVC (central line), tunneled catheter
• Indications: Vesicant drugs, long-term access, poor peripheral veins
• Advantages: Can infuse irritating solutions, blood draws
• Risks: Higher infection risk, pneumothorax, hemothorax, arrhythmias

Peripheral IV Insertion: Technique and Best Practices

Equipment Preparation

• Appropriate gauge catheter for indication
• Sterile gloves, tourniquet, alcohol or chlorhexidine wipe
• Transparent dressing and tape
• Confirm patency by flushing with normal saline

Insertion Technique

• Apply tourniquet 4-6 inches above insertion site
• Select visible, palpable vein (avoid near joints if possible)
• Cleanse site with antiseptic, allow to air dry
• Stabilize vein with non-dominant hand
• Insert catheter at 10-15 degree angle, bevel up
• Watch for blood return, advance catheter into vein
• Remove tourniquet and needle, advance catheter fully
• Apply dressing, label with date/time/initials

Site Assessment Post-Insertion

• Observe for immediate complications (infiltration, extravasation)
• Confirm blood return when aspirating
• Ensure flushing with saline goes smoothly
• Observe for swelling or distress during saline flush

IV Medication Administration

Medication Preparation and Verification

• Use aseptic technique for all preparations
• Verify drug, dose, route, patient, time (five rights)
• Check for IV compatibility with line and other medications
• Verify IV function before administration
• Dilute medications per protocol to reduce vein irritation

IV Push Administration

• Flush line with 5-10 mL normal saline
• Administer medication at prescribed rate (slow vs rapid)
• Observe for immediate adverse reactions
• Flush with 5 mL normal saline after administration
• Document medication, dose, time, route, response

IV Infusion Administration

• Prepare infusion bag (verify correct solution and additives)
• Spike bag with appropriate tubing
• Prime tubing to remove air before connection
• Connect to IV catheter and secure connection
• Set infusion rate (mL/hour) using pump or gravity
• Monitor infusion site hourly for complications

IV Complications: Recognition and Management

Infiltration and Extravasation

• Definition: IV fluid enters surrounding tissue
• Signs: Swelling, coolness, blanching at site
• Extravasation: Vesicant drug infiltrates (tissue damage risk)
• Management: Stop infusion immediately, remove catheter, elevate limb
• Antidote: May require specific antidote for vesicant drugs

Phlebitis

• Definition: Inflammation of vein
• Signs: Redness, warmth, pain along vein, palpable cord
• Causes: Irritating drugs, prolonged catheterization, poor insertion technique
• Management: Remove catheter, apply warm compress, elevate arm
• Prevention: Frequent site assessment, prompt removal of irritating drugs

Infection (Catheter-Related Bloodstream Infection - CRBSI)

• Signs: Fever, erythema at insertion site, purulent drainage
• Risk factors: Duration >48-72 hours, poor insertion technique
• Prevention: Sterile insertion, aseptic maintenance, prompt removal
• Management: Remove catheter, blood cultures, start empiric antibiotics

Thrombosis

• Definition: Blood clot in vein around catheter
• Signs: Inability to flush, swelling, pain
• Prevention: Maintain line patency with regular flushes
• Management: Remove catheter, apply warm compress, elevate

Air Embolism

• Definition: Air enters bloodstream
• Signs: Sudden shortness of breath, chest pain, hypotension
• Prevention: Prime all tubing, use proper connections
• Management: Position left lateral decubitus, notify provider immediately

IV Site Maintenance and Monitoring

Daily Site Assessment

• Inspect site for swelling, erythema, drainage
• Palpate for cords, warmth, tenderness
• Confirm dressing clean, dry, intact
• Verify line patent (flushes easily)

Dressing and Line Care

• Change transparent dressing every 7 days or if soiled/wet
• Change gauze dressing every 2 days
• Flush line with saline after each medication
• Flush heparin lock every 8-12 hours if not in use
• Replace tubing per hospital protocol (typically every 96 hours)

Key Takeaways: IV Therapy Mastery

• Select appropriate vascular access based on indication
• Use aseptic technique for all insertions
• Assess insertion site per protocol
• Verify medication compatibility and IV patency before administration
• Monitor infusion site hourly for complications
• Recognize and manage common IV complications
• Maintain line patency and prevent infection
• Remove catheter when no longer needed (reduce infection risk)