GCC Nurse Vascular Access Guide

🩸 Vein Selection

Preferred Sites (proximal to distal)

Cephalic vein — forearm/upper arm; easily palpable, good for 18–20G
Basilic vein — medial forearm; large but rolls; avoid if PICC planned
Median cubital — antecubital fossa; large but restrict joint movement; use only if no alternative
Median forearm veins — reliable, less movement restriction
Metacarpal veins — dorsum of hand; smaller gauge, higher phlebitis risk with irritants

Avoid AC fossa when possible — flexion dislodges cannula, increases phlebitis and occlusion risk. If used, apply arm board.

Sites to Avoid

Affected limb post mastectomy / lymph node dissection
Side of AV fistula or shunt
Inflamed, bruised, or infected skin
Lower extremities (high DVT/phlebitis risk)
Dominant hand for long-term use where possible

📏 Catheter Gauge Selection

Gauge	Colour	Use Case
18G	Green	Blood transfusion, CT contrast, rapid fluid resuscitation, surgery
20G	Pink/Rose	Standard IV medications, maintenance fluids, most adults
22G	Blue	Elderly patients, small veins, paediatric patients, sensitive veins
24G	Yellow	Fragile veins, neonates, very elderly, chemotherapy patients with poor access

Use the smallest gauge that meets the clinical need — smaller gauges cause less trauma and fewer occlusions.

💉 Insertion Technique

Perform hand hygiene (WHO 5 Moments). Gather: cannula, tourniquet, cleansing swab, dressing, flush, label, gloves.
Identify patient (2 identifiers). Explain procedure. Obtain verbal consent. Position arm at heart level.
Apply tourniquet 10–15 cm proximal to intended site. Ask patient to open and close fist.
Select vein by inspection and palpation. Clean skin with 70% isopropyl alcohol or chlorhexidine swab — allow to dry fully (30 seconds).
Don non-sterile gloves. Stretch skin taut distally with non-dominant thumb.
Insert bevel-up at 15–30° angle (shallower for superficial veins). Watch for blood flashback in the chamber.
On flashback, lower angle to 5–10°, advance 2–3 mm further into vessel to ensure bevel is fully inside.
Retract needle slightly while advancing the plastic catheter fully off the needle into the vein.
Release tourniquet. Occlude vein proximal to tip with finger pressure. Remove needle and dispose immediately in sharps bin.
Connect extension set / bung. Flush with 10 ml 0.9% NaCl using ANTT — observe for swelling (extravasation).
Apply transparent semi-permeable dressing. Secure catheter wings. If antecubital — apply arm board.
Label dressing: date, time, site, gauge, nurse initials. Document in patient record.

🔒 Securing & Dressing

Transparent semi-permeable dressing (e.g., Tegaderm, IV3000) — allows visual inspection
No gauze under transparent dressing — obscures site
Sterile gauze dressing acceptable if patient diaphoretic — change every 48 hours
Arm board for antecubital or wrist sites — secure with bandage, allow fingertip circulation check
Loop extension tubing under dressing to absorb tension
Replace dressing if: soiled, loose, moisture under it, or due for routine change
Routine change: every 72–96 hours per policy or when clinically indicated

📋 Patency & Documentation

Patency Flush (ANTT)

Flush 10 ml 0.9% NaCl before and after each drug administration
Use pulsatile (push-pause) technique to create turbulence and clear cannula
Maintain positive pressure on final flush (clamp while last 0.5 ml infusing)
Frequency when not in use: flush every 8–12 hours per local policy

Documentation Required

Date and time of insertion
Anatomical site (e.g., right cephalic, mid-forearm)
Gauge and type of cannula
Number of attempts
Inserting nurse (full name / ID)
Daily site inspection and VIP score (Visual Infusion Phlebitis)

IV Catheter Size Selector

Select Clinical Indication:

Visual Infusion Phlebitis (VIP) Score Calculator

Select all signs present at the cannula site:

Pain / tenderness at site Erythema (redness) around site Swelling / oedema Palpable venous cord Purulent discharge

⚠️ DIVA — Difficult Intravenous Access Assessment

The DIVA score identifies patients at high risk of failed cannulation. Assess before attempting IV access.

DIVA Risk Factors

Obesity — subcutaneous fat obscures veins; consider ultrasound
Dark skin tone — venous visualisation reduced; rely on palpation and technology
Previous chemotherapy — vein scarring and thrombosis
IV drug use history — extensive scarring of superficial veins
Dehydration — collapsed veins; hydrate first if clinically safe
Chronic illness (renal failure, diabetes, SLE) — poor vascular quality
Previous multiple hospital admissions — cumulative venous damage
Oedematous limbs — veins not palpable

Escalation Pathway

First attempt by inserting nurse — consider ultrasound if DIVA risk present
Second attempt — different site or more experienced nurse
After 2 failed attempts — escalate to senior nurse, VAT, or anaesthetics
Consider alternative access: PICC, midline, or central venous catheter
Document all attempts, sites, and outcome in patient record

Do NOT exceed 2 attempts per nurse without escalation — patient safety and comfort mandate this.

🔦 Vein Visualisation Aids

Vein Light / Transilluminator

Cold LED light placed under limb — veins appear as dark lines. Inexpensive. Less effective in obese patients or deep veins. Good for paediatrics and hand veins.

AccuVein / Near-Infrared

Projects venous map onto skin surface. Battery-powered, portable, non-contact. Improves first-attempt success rate by ~26% in DIVA patients. Available in most GCC tertiary centres.

Warm Compress

Apply warm moist towel or commercial heating pad for 5–10 minutes. Causes vasodilation — veins become more visible and palpable. Simple, effective, no cost. Always try first.

📡 Ultrasound-Guided Peripheral IV

Equipment & Setup

High-frequency linear probe (7.5–15 MHz) — vascular / superficial structures
Sterile probe cover or sterile gel technique when accessing vein
Use B-mode (2D) grayscale for vein identification; colour Doppler to confirm vessel type
Veins: compressible, thin walls, no pulsation; Arteries: non-compressible, pulsatile, thick walls
Target vein diameter ≥3 mm for peripheral IV; depth ≤1.5 cm for standard needle length

Short-Axis (Transverse) Technique

Probe perpendicular to vein — vein appears as a circle on screen
Visualise needle tip as a bright dot entering the vein circle
Risk: can lose needle tip — advance slowly, tilt probe to track tip
Preferred for beginners due to easier target identification

Long-Axis (In-Plane) Technique

Probe parallel to vein — entire needle shaft visible on screen
Better needle visualisation; more technically demanding probe alignment
Preferred for experienced practitioners — reduces posterior wall puncture

2-Person Technique for Novice: One nurse operates probe, one performs cannulation. Communicate clearly — "I can see the vein", "needle entering now". Debrief after procedure.

Post-Insertion Confirmation

Confirm catheter tip position in vein lumen — inject saline and observe turbulence on ultrasound
No tissue swelling around tip = correctly positioned
Apply dressing as normal; document US-guided insertion

Pre-Cannulation Hydration

In elective situations with dehydrated patients, oral or IV pre-hydration improves vein diameter significantly. Even 500 ml IV fluid over 30 minutes can convert a failed cannulation to a successful one.

📌 Indications for PICC

IV therapy anticipated >5 days
Irritant or vesicant medications (vancomycin, amiodarone, potassium >40 mEq/L)
Total parenteral nutrition (TPN)
Long-course IV antibiotics (e.g., 6-week OPAT)
Frequent blood sampling (avoid where possible — phlebotomy preferred)
Poor peripheral access (DIVA patient)
Continuous infusions requiring strict rate control

Contraindications

Known DVT in target limb
Skin infection at insertion site
End-stage renal disease (preserve veins for AV fistula)
Coagulopathy (relative — discuss with team)

📐 PICC Sizing & Lumen Selection

Type	Size	Use
Single-lumen	4 Fr	Single IV infusion, OPAT, standard medications
Double-lumen	5 Fr	TPN + medication simultaneously, incompatible drugs, blood sampling
Power-injectable	4–5 Fr	CT contrast injection (confirm PICC rated for power injection)

Always confirm power-injectable rating before CT contrast — standard PICCs can rupture under injector pressure.

Insertion Site Preference

Basilic vein — preferred; larger diameter, straighter path to SVC
Cephalic vein — smaller, angle at subclavian junction increases malposition risk
Brachial vein — adjacent to brachial artery — higher risk; use ultrasound

📍 PICC Tip Position

Correct PICC tip position is the cavoatrial junction (CAJ) — lower third of SVC at entry to right atrium. This position:

Ensures adequate haemodilution of irritant drugs
Reduces risk of arrhythmia (tip not in RA) and vessel erosion (tip not against vessel wall)
Reduces thrombosis risk compared to mid-SVC positioning

CXR MANDATORY before first PICC use. Tip in right atrium = withdraw 2–3 cm. Tip in subclavian / axillary = do not use — reposition or replace. Document tip position in cm from external measurement and on CXR report.

Measuring PICC Length Before Insertion

Measure from insertion site → axilla → over clavicle to angle of Louis (T4/T5) — approximates CAJ
Add 2–3 cm for anatomical variation
Use arm in 90° abduction during measurement for basilic/brachial access

🔧 PICC Nursing Care

Dressing Management

Inspect dressing and exit site daily — document VIP/phlebitis score
Transparent dressing change: every 7 days or if soiled/loose
Gauze dressing (if oozing post-insertion): change every 48 hours
Use chlorhexidine 2% / alcohol 70% for exit site cleaning; allow to dry
Chlorhexidine-impregnated sponge (e.g., Biopatch) at exit site — reduces CLABSI
ANTT (Aseptic Non-Touch Technique) for all PICC accesses

Flushing Protocol

Flush with 10 ml 0.9% NaCl before and after each use (pulsatile technique)
Lock with 5 ml 0.9% NaCl when not in use (SASH: Saline–Administer–Saline–Heparin)
Heparin lock (10 U/ml, 3–5 ml) per local policy for lumens not in daily use
Use 10 ml syringe minimum — smaller syringes generate excess pressure
Do not force flush if resistance felt — investigate occlusion

Blood Sampling via PICC

Stop all infusions ≥1 minute before sampling
Discard first 5–10 ml (1.5–2× dead space) before collecting sample
Flush 20 ml NS after sampling; resume infusions

🚨 PICC Complications

Complication	Signs	Action
Upper extremity DVT	Arm swelling, pain, erythema, warmth; may be asymptomatic	Stop using PICC, urgent Doppler ultrasound, anticoagulation as per medical team
PICC-associated infection (CLABSI)	Fever, rigors, exit site erythema/exudate, positive blood cultures from PICC	Blood cultures x2 (one from PICC), consider removal, antibiotics per ID team
Occlusion	Unable to flush or aspirate; resistance on flushing	Do not force — try gentle aspiration; alteplase instillation per protocol; do not use if unresolved
PICC migration	Arm pain on flush, ECG changes, patient feels palpitations, or tip not on CXR in expected position	Confirm tip position via CXR; withdraw to safe position; do not use until verified
Fibrin sheath	Can flush but cannot aspirate blood	Stripping procedure or thrombolytic therapy; refer to IR if persistent

⚙️ Port Types & Anatomy

Single-Chamber Low-Profile Port

Titanium or polymer chamber with silicone septum
Low profile — less visible under skin, comfortable for patients
Most common type for chemotherapy, long-term antibiotics

Double-Lumen Port

Two independent chambers — allows simultaneous incompatible infusions
Larger profile; requires two Huber needles or dual-access Huber set
Used in complex oncology patients requiring TPN + chemotherapy simultaneously

Key Anatomical Points

Surgically implanted subcutaneously — usually infraclavicular
Catheter tunnelled to subclavian or internal jugular vein → tip at CAJ
Septum can withstand ~1000–2000 punctures (needle-dependent)
Palpate reservoir body (hard disc), septum centre (slightly raised), and edges

🎯 Accessing an Implanted Port

Only trained nurses may access implanted ports. Non-coring Huber needles MUST be used — standard IV needles core the septum and destroy port function.

Access Procedure

Gather: Huber needle (correct length — 20–22G, 19–22mm), chlorhexidine swab, sterile gloves, 10ml syringe x3, NS flush, dressing, extension set with clamp.
Identify port by palpation — locate reservoir body, identify septum centre.
Clean skin with 2% chlorhexidine / 70% alcohol — 30 second scrub, allow to dry fully.
Don sterile gloves. Use non-dominant hand to stabilise port — index and middle finger either side, thumb pressing down to anchor.
Insert Huber needle perpendicular (90°) to the skin through septum until bevel hits back of chamber.
Aspirate for blood return. If no blood: reposition patient, have patient raise arms, or gently reposition needle — do not proceed without blood return.
Flush 10 ml NS — observe for signs of extravasation (swelling, pain at port site = malpositioned needle).
Secure Huber needle with sterile transparent dressing. Label with date and nurse.

🔓 Deaccessing a Port

Complete final infusion. Flush with 10 ml 0.9% NaCl (pulsatile technique).
Instil heparin lock (100 U/ml, 5 ml) while maintaining positive pressure — clamp extension set before withdrawing final 0.5 ml.
Stabilise port with non-dominant fingers. With dominant hand, grasp Huber needle wings and pull straight out perpendicularly with firm, smooth pressure.
Apply gentle pressure with sterile gauze. No sutures needed.
Inspect site. Apply small adhesive dressing. Instruct patient to report any pain, swelling, or fever.

Positive pressure on last flush is critical — negative pressure draws blood into catheter tip and causes fibrin clot formation leading to occlusion.

📅 Port Flushing Protocol

During Active Use

Flush 10 ml NS before each infusion
Flush 10 ml NS after each infusion
Lock with 5 ml heparin 100 U/ml when not actively infusing

Maintenance (Port Not in Use)

Monthly maintenance flush: 10 ml NS + 5 ml heparin 100 U/ml
Some protocols: every 4–8 weeks depending on manufacturer and local policy
Document maintenance flushes in patient record
Educate outpatient/oncology patients: attend monthly port clinic if no active treatment

🚨 Port Complications

Complication	Presentation	Nursing Action
Fibrin sheath	Can flush (no resistance) but unable to aspirate blood — "one-way occlusion"	Try Valsalva manoeuvre; reposition patient; alteplase instillation per protocol; refer to IR for fibrin sheath stripping
Extravasation	Swelling, burning, or pain at port site during infusion; Huber needle dislodged from septum	STOP infusion immediately. Do NOT remove needle — aspirate residual drug if possible. Initiate extravasation protocol. Document drug type (vesicant vs non-vesicant). Consult surgical or oncology team.
Port pocket infection	Redness, warmth, tenderness, fluctuance over port pocket; may have systemic fever	Swab for culture; wound/surgical team review; may require port removal
Bloodstream infection (CABSI)	Fever, rigors, positive blood cultures from port lumen; no local port site infection	Paired blood cultures (peripheral + port); consider port salvage with antibiotics vs removal based on organism and clinical severity
Catheter fracture/pinch-off	Inability to flush, chest pain on flush, or visible catheter fragment on CXR	Do not use — refer to IR for catheter retrieval; port removal likely required

📏 Midline Catheter — Definition & Key Facts

What is a Midline?

Peripheral catheter 8–20 cm in length
Tip positioned in axillary or subclavian vein — NOT in SVC
Classified as peripheral catheter — not a central line
Inserted via antecubital or upper arm veins under ultrasound guidance
Dwell time: 7–28 days (some up to 30 days per policy)
Does NOT require CXR confirmation of tip position

Indications

IV therapy anticipated 7–28 days
Non-vesicant, non-irritant IV medications
IV antibiotics for community/OPAT if drug compatible
Patient with difficult peripheral access needing medium-term therapy
Bridge access while awaiting PICC or CVC insertion

NOT for: TPN, continuous vesicant infusions, pH <5 or >9 drugs, osmolarity >600 mOsm/L.

⚖️ Midline vs PICC — Comparison

Feature	Midline	PICC
Tip position	Axillary / subclavian vein	Cavoatrial junction (SVC)
CXR required	No	Yes — before first use
Dwell time	7–28 days	Up to 12 months
TPN compatible	No	Yes
Vesicant drugs	No	Yes
Blood sampling	Not recommended	Yes (with discard)
DVT risk	Lower than PICC	~4–5% upper extremity DVT
Insertion time	Shorter	Longer (MST + tip measurement)
Cost	Lower	Higher (device + CXR)
CLABSI risk	Lower (peripheral catheter)	Higher (central catheter)

💉 Midline Insertion

Indicate for midline — confirm drug compatibility. Obtain consent.
Position patient supine. Apply tourniquet. Identify target vein with ultrasound (basilic preferred).
Measure: from insertion site along arm to axilla — this is the insertion length.
Prepare sterile field. Apply full ANTT. Ultrasound-guided puncture using modified Seldinger or catheter-over-needle technique.
Thread catheter to measured length. Confirm no intravascular complications.
Aspirate blood. Flush 10 ml NS — no swelling or resistance.
Apply transparent dressing. Label with date, length, nurse.
Document insertion in patient record. No CXR required.

🔧 Midline Care & Dressing

Dressing Changes

Transparent dressing: change every 5–7 days or if soiled/loose
Gauze dressing (if oozing): change every 48 hours — transition to transparent when dry
ANTT for all dressing changes and accesses
Assess exit site at every dressing change — erythema, tenderness, exudate, catheter migration

Flushing

10 ml NS before and after each use (pulsatile)
Positive pressure lock: 3–5 ml NS when not in use
Heparin lock per local policy for lumens not in daily use

Blood Sampling

Blood sampling via midlines is NOT recommended — tip not in central position; may not aspirate reliably; risk of sampling error. Use peripheral phlebotomy instead.

5–15%

Phlebitis Rate

Ward peripheral IV in GCC hospitals

1–3

per 1000 line days

CLABSI in GCC ICUs (vs NHSN benchmark <1)

26%

Improvement

First-attempt success with near-infrared vein finders

JCI

Accreditation Driver

Key driver of ANTT & VAT implementation in GCC

🏥 GCC Healthcare Context

High IV Demand

GCC patient populations have a strong cultural preference for IM and IV medications over oral routes. Nurses should be prepared for higher cannulation volumes per shift compared to Western hospital norms. This increases importance of correct technique and rotation to prevent phlebitis.

Vascular Access Teams (VAT)

Emerging in major GCC tertiary hospitals (Saudi Arabia, UAE, Qatar)
Dedicated VAT nurses: PICC insertion, difficult access, port management
Proven reduction in CLABSI rates and peripheral IV phlebitis
VAT referral should be built into escalation protocols
JCI standards support VAT implementation for quality improvement

ANTT Compliance

Aseptic Non-Touch Technique is universally adopted in JCI-accredited GCC hospitals
Compliance audits show variability in ward vs ICU settings
ANTT for all: cannulation, dressing changes, drug administration, blood sampling
Standard ANTT (peripheral IV) vs Surgical ANTT (PICC/CVC insertion)

🔬 Clinical Practice Considerations

Vacutainer vs Syringe Blood Sampling

Vacutainer system: preferred for phlebotomy — closed system, reduces haemolysis, OSHA-compliant needlestick prevention
Syringe system: used when Vacutainer unavailable or for slow-flow veins — risk of haemolysis if excessive negative pressure
Never force blood into Vacutainer tubes — remove stopper or use adapter correctly

Cannulation Training in GCC

Silicone arm/forearm trainers widely used in GCC simulation centres
Ultrasound-guided phantom trainers for PICC and difficult access training
Competency frameworks: minimum supervised insertions before independent practice
Some GCC hospitals require annual cannulation skill re-validation

Religious & Cultural Considerations

Female patients: modesty regarding arm exposure — explain procedure, use privacy curtain, expose only the arm being cannulated
Male nurse/female patient: cultural sensitivity — where possible, assign female nurse for cannulation; if unavailable, explain context and obtain verbal consent for the procedure
Prayer times: plan non-urgent access procedures around prayer times where clinically safe
Ramadan fasting: patients may be dehydrated — consider hydration before elective cannulation

📊 GCC HAI Data & Benchmarking

Phlebitis in GCC Ward Settings

Reported rates: 5–15% of peripheral IV cannulas develop phlebitis
Most common type: mechanical phlebitis (cannula movement) and chemical phlebitis (irritant drugs)
Risk factors in GCC: high use of irritant IV antibiotics (vancomycin, metronidazole), hot climate increasing diaphoresis and dressing failure
Target: <5% phlebitis rate with VAT and ANTT compliance

CLABSI in GCC ICUs

GCC ICU CLABSI rates: 1–3 per 1000 central line days
NHSN (US) benchmark: <1 per 1000 line days
Improvement strategies: CLABSI bundles (hand hygiene, maximal barrier precautions, chlorhexidine skin prep, optimal site selection, daily line necessity review)
CVC guide: see gcc-nurse-central-line-guide.html

HAI prevention is a core JCI standard. Nurses have a direct role in reducing CLABSI and phlebitis rates through strict ANTT, daily device necessity review, and prompt removal of unnecessary lines.

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Practice MCQs — Vascular Access

1. Which gauge IV cannula is most appropriate for a blood transfusion in an adult patient?

A 24G (Yellow)

B 22G (Blue)

C 18G (Green)

D 20G (Pink)

2. Where should the tip of a correctly positioned PICC line sit?

A Mid-subclavian vein

B Axillary vein

C Cavoatrial junction (lower SVC)

D Right atrium

3. What is the recommended tourniquet placement distance proximal to the intended IV insertion site?

A 5 cm

B 10–15 cm

C 20–25 cm

D 30 cm

4. A midline catheter tip should be positioned in which vessel?

A Superior vena cava

B Cephalic vein at the elbow

C Axillary or subclavian vein

D Innominate vein

5. When accessing an implanted port, which needle type MUST be used?

A Standard 21G butterfly needle

B Non-coring Huber needle

C 18G IV cannula needle

D Spinal needle

6. The VIP (Visual Infusion Phlebitis) score records which of the following maximum scores?

A 0–3

B 0–5

C 0–10

D 0–4

7. Which vein is PREFERRED for PICC insertion due to its larger diameter and straighter path to the SVC?

A Cephalic vein

B Basilic vein

C Brachial vein

D Median cubital vein

8. A patient cannot have blood aspirated through a port but you can flush it without resistance. This is most likely caused by:

A Catheter fracture

B Fibrin sheath at catheter tip

C Port pocket infection

D Huber needle coring of septum

9. According to the DIVA escalation pathway, after how many failed IV cannulation attempts should you escalate to a senior nurse or VAT?

A 1 attempt

B 2 attempts

C 3 attempts

D 4 attempts

10. Which of the following drugs is NOT suitable for administration via a midline catheter?

A IV ceftriaxone

B IV normal saline

C Total parenteral nutrition (TPN)

D IV metronidazole

Vascular Access — Nursing Clinical Guide