Can medication be used to donate blood and can physical examination detect it

After taking medication, blood donation and physical examination generally cannot detect it.

Drug ingredients are usually not tested in standard blood donation physical examination items. The health check before blood donation focuses on excluding infectious diseases and evaluating the basic health status of blood donors, including indicators such as hemoglobin levels, blood pressure, and body temperature. Routine physical examinations do not include drug screening items unless testing is specifically arranged for specific drugs. Most drugs will not affect the results of blood donation physical examination, but some drugs such as aspirin may affect platelet function, and antibiotics may affect blood culture results. Some prescription drugs require an extended interval for blood donation, such as isotretinoin, which needs to be discontinued for one month before blood donation. It should be noted that medication should be truthfully disclosed before donating blood, and medical personnel will determine whether it affects the safety of blood donation.

The day before donating blood, one should avoid taking anticoagulant drugs such as aspirin and maintain sufficient sleep and a light diet. After donating blood, supplementing with iron containing foods such as lean meat and animal liver can promote the recovery of hematopoietic function. If you have recently taken special medications such as immunosuppressants or chemotherapy drugs, you should proactively inform medical staff and adjust your blood donation plan according to medical advice. Avoid vigorous exercise within 24 hours after blood donation, pay attention to the cleanliness and dryness of the puncture site, and seek medical attention promptly if discomfort such as dizziness occurs.