Papaverine, Induced Platelet Aggregation, Serum/Plasma, Qualitative, Luciferase-Linked

What This Test Measures

Platelets are small blood cells that help form clots. In this test, a blood sample (serum or plasma) is treated with papaverine, and the laboratory observes whether the platelets aggregate, or stick together. The "qualitative" part means the result is generally descriptive rather than a precise number.

Why Papaverine Is Used

Papaverine is a vasodilator that can influence cyclic nucleotide signaling within platelets. Laboratories use it to probe platelet function under controlled conditions, often as part of research or specialized diagnostic panels rather than routine screening.

How the Sample Is Handled

The test may use serum or plasma, so the laboratory must receive the sample under specific conditions. Because platelet function is sensitive, timing, handling, and the presence of certain medications can affect the result, and the laboratory will follow its own validated protocol.

What the Result Means

A qualitative result describes the observed pattern of platelet aggregation rather than a numeric value. Results are most useful when considered with other platelet function tests, the patient's medication history, and clinical findings. Your care team will explain what your result indicates in your situation.