Blood Collection Process

🔹 1. Preparation

  • Verify identity: Confirm the patient’s name, age, and medical record.
  • Explain procedure: Reduce anxiety and get cooperation.
  • Hand hygiene: Wash hands and wear gloves.
  • Gather supplies: Tourniquet, alcohol swabs, sterile needle, collection tubes, gauze, tape/bandage, disposal container.

🔹 2. Patient Positioning

  • Patient sits or lies comfortably.
  • Arm extended and supported with palm facing upward.

🔹 3. Site Selection

  • Common site: Median cubital vein (inside of elbow).
  • Alternative: Cephalic vein, basilic vein, or dorsal hand veins.
  • Avoid areas with infection, scars, or IV lines.

🔹 4. Site Preparation

  • Apply tourniquet 3–4 inches above site to engorge veins.
  • Palpate vein with index finger.
  • Clean site with 70% alcohol in circular motion, allow to dry.

🔹 5. Venipuncture (Blood Collection)

  • Insert sterile needle bevel up at a 15–30° angle.
  • Blood flows into syringe or vacuum tube.
  • Fill required tubes in correct order of draw (to prevent contamination).

🔹 6. Post-Collection

  • Release tourniquet before withdrawing needle.
  • Withdraw needle smoothly, immediately apply gauze with pressure.
  • Ask patient to hold firm pressure for 2–5 minutes.
  • Apply bandage.

🔹 7. Labeling & Documentation

  • Label tubes at bedside (patient ID, date, time, collector’s initials).
  • Complete lab forms and transport samples as per protocol.

🔹 8. Disposal & Safety

  • Dispose of needle in sharps container immediately.
  • Remove gloves, wash hands.
  • Follow infection control protocols.

✅ Key Safety Tips

  • Always follow universal precautions.
  • Use the correct tube type (EDTA, citrate, heparin, serum).
  • Avoid prolonged tourniquet use (can cause hemoconcentration).
  • Never draw blood from a site below an active IV line unless documented.