California Phlebotomy Certification Practice Exam

After two failed venipuncture attempts, why should a technician note the blood was collected in a microcollection container?

1. To suggest an alternative collection method

2. To alert the laboratory of the presence of capillary blood

3. To document patient's cooperation

4. To highlight potential contamination

The correct answer is: To alert the laboratory of the presence of capillary blood

Noting that blood was collected in a microcollection container after two failed venipuncture attempts is essential for alerting the laboratory about the nature of the sample. When a microcollection container is used, it typically indicates that capillary blood was obtained, as this type of container is specifically designed for collecting small volumes of blood from capillary sources rather than from venous sources. This information is crucial for the laboratory because the characteristics of capillary blood can differ from that of venous blood, including variations in the composition of the sample, which may affect test results. By indicating that the blood came from a microcollection container, the technician ensures that laboratory personnel are aware that the sample could have different hematological or biochemical properties and may require different handling or interpretation during analysis. Properly documenting this detail supports accurate diagnostic processes and patient care, allowing clinicians to make informed decisions based on the type of specimen received.