CPT (Certified Phlebotomy Technician) Practice Exam

Applying pressure and following proper technique are key factors in reducing the risk of hematoma formation during a blood draw. Proper technique involves correctly positioning the needle, ensuring the vein is adequately anchored, and withdrawing the needle smoothly. After the draw, applying pressure to the site immediately assists in minimizing bleeding, which can lead to hematoma if blood leaks into surrounding tissues.

Using a smaller needle may seem beneficial, but it doesn't guarantee a lower risk of hematoma, as the technique and pressure applied post-draw are more crucial. Collecting samples from the same vein repeatedly can actually increase the risk of complications, including hematoma, due to irritation and damage to the vein. Keeping the patient standing during the draw is generally not advisable, as it can lead to fainting or other complications that could complicate the procedure and increase the hematoma risk.