Final answer:
The screening test that involves the vascular system and platelet function to assess the overall integrity of primary hemostasis is called platelet aggregation or platelet aggregation assay.
Step-by-step explanation:
The screening test that involves the vascular system and platelet function to assess the overall integrity of primary hemostasis is called platelet aggregation or platelet aggregation assay.
In this test, blood samples are taken from the patient and mixed with a substance that activates platelet activation and aggregation. The level of platelet aggregation is then measured, which provides information about the patient's ability to form a stable platelet plug to prevent bleeding.
For example, if a patient has a deficiency in platelet function, the aggregation response will be impaired, indicating a potential problem with primary hemostasis.