Would aspirin affect CBC blood test?

aspirin is a blood thinner, so when you go for blood work and one of the procedures is the coagulation test - this is when they put a small cut on your forearm and time how long it takes for the cut to stop bleeding on its own - it will make your blood take longer to clot. it should clot between 2 and 9 minutes - taking aspirin could make it take longer, affecting the results.