ASCP Phlebotomy Technician Certification Practice Exam 2025 – Comprehensive All-in-One Study Guide for Success!

The appropriate method for transferring blood from a syringe into additive and non-additive tubes is through the use of a syringe transfer device attached to the syringe. This technique is essential because it allows for a controlled and sterile transfer of the blood specimen, minimizing the risk of contamination and ensuring that the specimen is collected in the manner required by the tube’s additives.

Using a syringe transfer device is specifically designed to fit securely onto the syringe and directly connect to the blood collection tube. This process helps to maintain the integrity of the specimen, as it reduces the need for manual handling, which can introduce errors or compromise the sample quality.

Additionally, employing this method ensures that the blood is transferred without subjecting it to unnecessary pressure changes, which could affect the composition of the specimen. This precision is particularly important when dealing with additive tubes that have specific anticoagulants or preservatives that require a proper volume of blood for effective function.

In contrast, manually pouring the blood could lead to spills and contamination, and using a vacuum collection system is not compatible with the syringe method, as vacuum collection is based on pre-vacuumed tubes that fill automatically when inserted into a dedicated holder. Creating a negative pressure in the syringe would not facilitate the transfer process to collection tubes effectively and