Question 23

Keep the arm still.

To ensure a successful blood draw, the phlebotomist should instruct the patient to keep the arm still during the procedure. This minimizes movement, which can lead to complications such as hematoma formation or difficulty in obtaining a sample.

A) Contact the provider for test results.

This instruction is not relevant to the immediate process of performing a blood draw. While patients may need to follow up for results later, it does not pertain to the actions they should take during the blood draw itself.

B) Watch for bruising in the next 24 hr.

Although monitoring for bruising is important after a blood draw, this instruction does not assist in the actual procedure. It does not contribute to the successful collection of blood and is therefore not appropriate to provide beforehand.

C) Keep the arm still.

This instruction is crucial as it directly impacts the effectiveness of the blood draw. Keeping the arm still helps prevent complications such as needle displacement or difficulty in collecting a clean sample, ensuring a smoother procedure.

D) Apply mild pressure to the site.

While applying pressure may be necessary after the blood draw to prevent bleeding, it is not an instruction relevant to the actions the patient should take before or during the procedure. Therefore, it does not effectively contribute to the blood draw process.

Conclusion

The instruction to keep the arm still is essential for ensuring a successful blood draw, preventing complications, and facilitating the process. Other options either do not relate to the procedure or are applicable only after the blood collection has been completed, making them unsuitable as pre-draw instructions. Thus, option C is the most appropriate choice.