Does taking Aspirin or Warfarin affect the test results?
It may very well do so, depending on the precise nature of the test(s). When you’re scheduled to have any blood testing, talk to the physician ahead of time about any medications (prescription or not) that you take on a regular basis, and follow his or her instructions, which may involve skipping doses, not taking the medication within a certain number of hours prior to the test, etc. Usually, the physician, or someone in the doctor’s office, will offer any necessary directions routinely–but if nothing’s volunteered, ask, just to be sure.
