What labeling information is required on every specimen tube and where should the label be placed?

• A. Patient name, ID, date, time, test(s), collector initials; place label on the side of the tube, not on the cap.
• B. Patient name only.
• C. Date and time only.
• D. Lab technician initials only.

Answer: (A)

Accurate specimen labeling is essential to keep the sample linked to the right patient throughout processing. The label should include the patient’s full name, a unique identifier (ID or MRN), the date and time of collection, the tests being ordered, and the collector’s initials. This combination ensures clear identification, a record of when the specimen was drawn, and who collected it, which helps prevent mix-ups and supports traceability if any question about the sample arises.

The label belongs on the side of the tube, not on the cap. Labels on the cap can be displaced or obscured during handling, transport, or centrifugation, risking mislabeling or loss of the identifying information. Placing the label on the side keeps it with the tube through all steps of processing and makes it easy to read without interference from the cap.