Haemophilia/other haemorrhagic disorderYes
Thrombocytopenia or previous HITYes
Recent cerebral haemorrhage or severe hypertensionYes
Active peptic ulcer/recent gastrointestinal bleedingYes
Recent major trauma/surgery to eye or nervous systemYes
Hypersensitivity to any form of heparinYes
Known estimated GFR <30 mL/minYes
Risk deemed to outweigh benefits by clinicianYes