Question

Which of the following tubes should a medical assistant select first when adhering to the proper order of draw?

1) Red top tube
2) Light blue top tube
3) Lavender top tube
4) Green top tube

Answer 1

The light blue top tube should be selected first when adhering to the proper order of draw.

Step-by-step explanation:

When adhering to the proper order of draw, the medical assistant should select the light blue top tube first. This tube is used to collect blood samples for coagulation testing, such as Prothrombin Time (PT) and Activated Partial Thromboplastin Time (APTT).

The other tubes mentioned in the options have different purposes:

• The red top tube is used for collecting blood samples for chemistry tests.
• The lavender top tube is used for collecting blood samples for hematology tests, such as complete blood count (CBC).
• The green top tube is used for collecting blood samples for plasma separation, such as in the case of blood chemistry tests that require plasma samples.