Question 33

Rotate the bevel of the needle.

Rotating the bevel of the needle can help re-establish blood flow when it has stopped after attaching a second tube during venipuncture. This action may realign the needle within the vein to facilitate continuous blood flow.

A) Withdraw the bevel of the needle completely.

Withdrawing the bevel of the needle completely is not advisable as it may lead to additional complications, such as losing the vein and increasing the risk of hematoma formation. This action would also disrupt the established blood flow instead of helping to resolve the issue.

B) Rotate the bevel of the needle.

Rotating the bevel of the needle is the correct action to take. This maneuver can help to adjust the positioning of the needle within the vein, potentially allowing blood flow to resume. It addresses the problem directly without causing further interruption to the venipuncture process.

C) Increase tourniquet pressure.

Increasing tourniquet pressure is not an appropriate response as it may cause additional discomfort and does not directly address the issue of halted blood flow. In fact, excessive pressure could lead to complications such as hemoconcentration or damage to the vein.

D) Activate a new evacuated tube.

Activating a new evacuated tube without addressing the underlying issue of blood flow cessation is ineffective. Simply switching tubes will not resolve the blockage or misalignment caused by the initial needle insertion, and could waste resources without achieving the desired outcome.

Conclusion

The action of rotating the bevel of the needle is clearly the most effective response in this scenario, as it directly targets the problem of halted blood flow. Other options either exacerbate the situation or fail to address the immediate need for re-establishing blood flow, making them unsuitable. Thus, option B is the definitive correct choice.