Steps for Using Hemodialyzer
For single-use disposable dialyzers
✅ Step 1: Preparation
Prepare the dialysis machine and verify all components.
Check dialyzer model, membrane surface area, and sterilization method.
Ensure the packaging is intact and within the expiry date.
Remove the dialyzer from its sterile packaging.
Connect the arterial and venous blood lines to the dialyzer ports securely.
✅ Step 2: Priming the Dialyzer
Prime the dialyzer with isotonic saline to remove air and residual chemicals.
Use 0.9% sodium chloride (NaCl) solution.
Prime with 200–300 mL of saline (or as specified by manufacturer).
Ensure complete air removal from blood lines and dialyzer fibers.
Discard the priming solution to avoid contamination.
✅ Step 3: Vascular Access and Blood Flow
Establish patient vascular access and start blood flow.
Insert arterial and venous needles into the patient’s fistula or catheter.
Connect tubing to the patient and ensure secure fittings.
Start the blood pump, typically at 200–400 mL/min.
Monitor for any signs of air bubbles, leakage, or kinks in the tubing.
✅ Step 4: Dialysis Procedure
Conduct the dialysis session according to the prescribed treatment plan.
Dialysate flow: 500–800 mL/min.
Typical treatment duration: 3 to 5 hours.
Monitor transmembrane pressure (TMP), venous/arterial pressure, and ultrafiltration rate.
Observe patient vitals throughout the session.
✅ Step 5: Blood Return and Disconnection
Conclude the session and safely return blood to the patient.
Rinse the dialyzer and blood lines with saline to return residual blood.
Clamp tubing lines before disconnecting.
Remove needles carefully and apply pressure to access sites.
✅ Step 6: Disposal
Dispose of the used dialyzer and tubing per medical waste guidelines.
Treat as biohazardous waste.
Place used dialyzer in a sharps container or designated medical waste bag.
Document the procedure as per facility protocol.
