Which of the following is NOT a part of VAD flushing rules?

Flushing venous access devices (VADs) is crucial to maintain patency and prevent complications. The practice generally involves using a syringe, typically a 10 ml syringe, as it provides better pressure control and minimizes the risk of catheter rupture compared to smaller syringes.

The act of flushing with a 5 ml syringe may not align with standard protocols which advocate for a 10 ml syringe for flushing due to the volume and pressure considerations.

Scrubbing the hub is an essential part of VAD management as it helps to reduce the risk of catheter-related infections by disinfecting the access point before fluid administration or flushing.

Checking blood return is a vital step to ensure correct placement of the catheter within the vein. A positive blood return indicates that the catheter is functioning properly and is still in the vein, which is necessary for effective therapy.

Checking for allergies is important in clinical practice, especially prior to administering medications or treatments via the vascular access, ensuring that the patient does not have an adverse reaction to the substance being infused.

Thus, flushing VADs with a 5 ml syringe is not consistent with the standard flushing rules, making it the correct response.