National Dental Examining Board of Canada (NDEB) Practice Exam

Blood dyscrasia is a medical condition characterized by anomalies in the blood such as low platelet count, low white blood cells or low red blood cells. This can lead to serious issues such as bleeding and in severe cases, infection. Of the choices provided, aspirin, ibuprofen, and acetaminophen are all pain relievers and do not have a known association with blood dyscrasia. Indomethacin, on the other hand, is a non-steroidal anti-inflammatory drug (NSAID) commonly used to reduce pain, fever, and inflammation. It has been known to cause blood dyscrasia in some individuals. Therefore, C Indomethacin is the correct answer in this case.