What tests are commonly associated with Pink tube samples?

The choice regarding cross match tests is correct because pink-top tubes are specifically designed for blood bank or transfusion medicine applications. These tubes contain an additive, typically EDTA, which acts as an anticoagulant. This property is ideal for crossmatching, as the process requires the preservation of cellular components and blood components in a form that remains stable and viable for testing.

Crossmatch tests are crucial when preparing for blood transfusions to ensure compatibility between donor and recipient blood types, thereby reducing the risk of transfusion reactions. The use of pink tubes in this context helps maintain the integrity of the blood sample, ensuring accurate results.

Other options refer to tests that may require different tube additives or conditions. For instance, samples for ammonia testing or STAT lytes may use different colored tubes to ensure the right preservatives are present. Likewise, hCG qualitative tests usually require specific tubes that may aid in the detection of the hormone in urine or serum rather than the EDTA preservation used in pink tubes.