Final answer:
The blood test collected in a tube with a light-blue top is Prothrombin time (c). Prothrombin time is a test used to evaluate the ability of blood to clot properly.
Step-by-step explanation:
The blood test collected in a tube with a light-blue top is Prothrombin time (c).
Prothrombin time is a test used to evaluate the ability of blood to clot properly. It measures the time it takes for blood to clot after a specific substance is added. If the clotting time is prolonged, it may indicate a bleeding disorder or the need for adjustments to certain medications.
For example, a high prothrombin time result may indicate a deficiency in clotting factors or the presence of anticoagulants in the blood.