Complex sentence: In the United Kingdom, professional guidelines give specific indications for thrombophilia testing; it is recommended that testing is done only after appropriate counselling, and hence the investigations are usually not performed at the time when thrombosis is diagnosed but at a later time.
Split into simpler sentences: In the United Kingdom, professional guidelines give specific indications for thrombophilia testing. It is recommended that testing be done only after appropriate counseling, and hence the investigations are usually not performed at the time when thrombosis is diagnosed but at a later time.