Which is an example of an improper mixture of blood with a vacutainer additive?

Which is an example of an improper mixture of blood with a vacutainer additive?

• A. Wrong Patient
• B. Wrong Vacutainer tube
• C. Hemolyzed Specimen
• D. Improper mixture of blood sample with vacutainer additive

Answer: (D)

Mixing blood with the tube’s additive properly is essential to ensure the additive is distributed evenly throughout the sample. After collection, tubes are inverted a specific number of times to mix the blood with the anticoagulant or other additive. When mixing is inadequate, the additive may not contact all the blood, allowing clotting in tubes meant to remain unclotted or causing inconsistent preservation of analytes. This exact scenario is what this option describes: an improper mixture of the blood sample with the vacutainer additive, which can lead to inaccurate test results and potential need for redraw. Other issues like wrong patient, using the wrong type of vacutainer tube, or a hemolyzed specimen involve different problems (identity, incorrect additive, or cell rupture due to handling) and aren’t about the failure to mix the blood with the additive.

Mixing blood with the tube’s additive properly is essential to ensure the additive is distributed evenly throughout the sample. After collection, tubes are inverted a specific number of times to mix the blood with the anticoagulant or other additive. When mixing is inadequate, the additive may not contact all the blood, allowing clotting in tubes meant to remain unclotted or causing inconsistent preservation of analytes. This exact scenario is what this option describes: an improper mixture of the blood sample with the vacutainer additive, which can lead to inaccurate test results and potential need for redraw.

Other issues like wrong patient, using the wrong type of vacutainer tube, or a hemolyzed specimen involve different problems (identity, incorrect additive, or cell rupture due to handling) and aren’t about the failure to mix the blood with the additive.