70. Which of the following blood collection systems uses interchanging multi-sample tubes that allow a phlebotomist to draw several blood specimens at the same time?
Answer: A
Evacuation system
The evacuation system utilizes interchanging multi-sample tubes that enable a phlebotomist to collect multiple blood specimens simultaneously, enhancing efficiency and convenience during blood collection.
A) Evacuation system
This option is correct because the evacuation system is specifically designed to accommodate multiple sample tubes that can be filled in one puncture, allowing the collection of various blood specimens without the need for multiple needle sticks.
B) Hypodermic and syringe system
The hypodermic and syringe system does not utilize multi-sample tubes and typically requires a separate collection for each specimen. This method is less efficient for collecting multiple blood samples at once compared to the evacuation system.
C) Winged infusion and syringe system
While the winged infusion set, or butterfly needle, can be used to draw blood, it is generally used for single draws and does not support the use of interchanging multi-sample tubes. Thus, it does not fulfill the criteria of collecting several blood specimens simultaneously.
D) Lancet microcollection system
The lancet microcollection system is primarily designed for obtaining small blood samples from capillary sites, such as fingersticks. This method does not involve the use of multi-sample tubes and is not suitable for drawing multiple blood specimens at the same time.
Conclusion
The evacuation system is the only option that effectively meets the requirement of using interchanging multi-sample tubes for simultaneous blood specimen collection. The other options, while they have their own uses in phlebotomy, do not provide the same efficiency or capability for collecting multiple samples in one procedure.