HAS-BLED score for anticoagulation
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  • The HAS-BLED tool is often used to assess a patient’s bleeding risk before starting the use of anticoagulation – particularly in relation to atrial fibrillation.
  • It is often used in conjunction with the CHA2DS2-VASc score to weigh the risks and benefits of anticoagulation.
  • Each item is worth a single point
  • A score of ≥3 indicates “high risk” for bleeding if anticoagulation is used and it is recommended to either very closely follow-up the patient or consider alternatives to anticoagulation
HHypertension >160mmHg systolic
AAbnormal renal or liver function
SPrevious history of stroke
BPrevious history of major bleeding
LLabile INR
EIV drug use (<60% of time in therapeutic range)
DDrug and alcohol use – NSAIDs, anti-platelet agents, alcohol >8 weeks / week


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Dr Tom Leach

Dr Tom Leach MBChB DCH EMCert(ACEM) FRACGP currently works as a GP and an Emergency Department CMO in Australia. He is also a Clinical Associate Lecturer at the Australian National University, and is studying for a Masters of Sports Medicine at the University of Queensland. After graduating from his medical degree at the University of Manchester in 2011, Tom completed his Foundation Training at Bolton Royal Hospital, before moving to Australia in 2013. He started almostadoctor whilst a third year medical student in 2009. Read full bio

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