Which of the following actions helps prevent preanalytical errors related to patient identification in phlebotomy?

• A. Accurate patient identification and labeling of specimens
• B. Proceeding with labeling after testing
• C. Relying on room numbers for patient ID
• D. Using a blanket approach for all samples without verification

Answer: (A)

The key idea here is that preventing misidentification in phlebotomy hinges on confirming who the patient is and labeling the specimen correctly at the time of collection. When you identify the patient using at least two identifiers (for example, name and date of birth) and verify that these match the order requisition, you create a solid link between the person and the sample. Labeling the specimen at the bedside or immediately after collection, and ensuring that the label includes the patient’s identifiers and a unique patient link (often via a barcode, date, time, and collector’s initials), keeps the sample tied to the correct patient throughout testing and result reporting.

This approach is essential because mislabeling can lead to your lab results being attributed to the wrong patient, which can cause incorrect diagnoses, inappropriate treatment, and safety risks. By contrast, using room numbers as identifiers is unreliable—rooms can change, and multiple patients may share a room. Proceeding with labeling after testing eliminates the chance to verify the patient before the specimen is collected. A blanket, non-verified labeling approach bypasses the safeguards that prevent mix-ups.

So, accurate patient identification paired with proper at-collection labeling is the action that most effectively prevents preanalytical errors related to patient identification in phlebotomy.