[{"n": "ABO blood group system", "u": "/e/cardiovascular-and-blood/abo-blood-group-system/", "s": "The ABO blood group system is used to denote the presence of one, both, or neither of the A and B antigens on "}, {"n": "Blood type", "u": "/e/cardiovascular-and-blood/blood-type/", "s": "Classification of blood based on inherited antigens and antibodies."}, {"n": "Blood transfusion", "u": "/e/cardiovascular-and-blood/blood-transfusion/", "s": "Intravenous transfer of blood components to treat medical conditions."}, {"n": "Blood donation", "u": "/e/cardiovascular-and-blood/blood-donation/", "s": "Voluntary blood collection for transfusions and medical products."}, {"n": "Blood culture", "u": "/e/cardiovascular-and-blood/blood-culture/", "s": "A test to detect bacteria or fungi in the blood."}, {"n": "Blood test", "u": "/e/cardiovascular-and-blood/blood-test/", "s": "Laboratory analysis of blood for medical diagnosis and monitoring."}, {"n": "Blood pressure", "u": "/e/cardiovascular-and-blood/blood-pressure/", "s": "A vital sign measuring pressure of circulating blood against vessel walls."}, {"n": "Bleeding", "u": "/e/cardiovascular-and-blood/bleeding/", "s": "Blood escaping from damaged vessels; hemostasis is critical."}, {"n": "Bloodstream infection", "u": "/e/cardiovascular-and-blood/bloodstream-infection/", "s": "Infection of blood by pathogens, distinct from sepsis."}, {"n": "Arrhythmia", "u": "/e/cardiovascular-and-blood/arrhythmia/", "s": "Irregular heartbeats ranging from harmless to fatal."}, {"n": "Atrial fibrillation", "u": "/e/cardiovascular-and-blood/atrial-fibrillation/", "s": "Most common serious abnormal heart rhythm, affecting over 33 million people."}, {"n": "Cardiac arrest", "u": "/e/cardiovascular-and-blood/cardiac-arrest/", "s": "Cardiac arrest is the sudden loss of heart function."}, {"n": "Cardiogenic shock", "u": "/e/cardiovascular-and-blood/cardiogenic-shock/", "s": "A life-threatening condition from heart pump failure."}, {"n": "Cardiopulmonary resuscitation", "u": "/e/cardiovascular-and-blood/cardiopulmonary-resuscitation/", "s": "Emergency procedure combining chest compressions and ventilation to sustain life."}, {"n": "Cardiovascular disease", "u": "/e/cardiovascular-and-blood/cardiovascular-disease/", "s": "Cardiovascular disease is the top global killer, largely preventable."}, {"n": "Atherosclerosis", "u": "/e/cardiovascular-and-blood/atherosclerosis/", "s": "Chronic arterial disease driven by cholesterol and inflammation."}, {"n": "Arteriosclerosis", "u": "/e/cardiovascular-and-blood/arteriosclerosis/", "s": "Hardening of the arteries, a set of vascular disorders."}, {"n": "Angioplasty", "u": "/e/cardiovascular-and-blood/angioplasty/", "s": "Minimally invasive procedure to widen narrowed blood vessels."}, {"n": "Angiology", "u": "/e/cardiovascular-and-blood/angiology/", "s": "Medical specialty of the circulatory and lymphatic systems."}, {"n": "Anticoagulant", "u": "/e/cardiovascular-and-blood/anticoagulant/", "s": "Substances that prevent or reduce blood coagulation."}, {"n": "Aspirin", "u": "/e/cardiovascular-and-blood/aspirin/", "s": "A widely used NSAID with antithrombotic properties."}, {"n": "Atorvastatin", "u": "/e/cardiovascular-and-blood/atorvastatin/", "s": "Statin medication for cardiovascular disease prevention and lipid management."}, {"n": "ACE inhibitor", "u": "/e/cardiovascular-and-blood/ace-inhibitor/", "s": "Medication class for hypertension and kidney disease."}]