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Blood transfusion and massive haemorrhage

Procedurer The most serious transfusion accidents rarely stem from laboratory errors but from the wrong blood being given to the wrong patient — a mislabelled tube…

Blood gas interpretation: quick reference for acid-base disorders

…and supplemental oxygen [1]. Distinguish between: Acidaemia and alkalaemia , which describe the current pH of the blood. Acidosis and alkalosis , which describe processes that lower…

Blood pressure

…Classification of office blood pressure Category Systolic Diastolic : : : : : Optimal < 120 and < 80 Normal 120–129 and/or 80–84 High normal 130–139…

Blood Pressure Targets in Older and Frail Adults

Cardiology Clinical medicine Definition and Clinical Context Blood pressure management in older adults must account for chronological age, biological age, frailty, multimorbidity, cognitive status, functional…

Ambulatory blood pressure monitoring and Holter ECG

…the circumference, do not guess. Measure the blood pressure in both arms when fitting the device. Use the arm with the higher pressure, or the…

Hypertensive crisis: quick reference for acute blood pressure lowering

…term hypertensive urgency is best avoided. It implies that an asymptomatic rise in blood pressure must be treated urgently, which is not supported by evidence…

Evaluation of exercise stress test: ECG, symptoms, blood pressure, heart rate, performance

…Exercise performance (functional capacity, exercise capacity) Heart rate: maximal heart rate, heart rate response Blood pressure reaction ECG reaction: ST changes, T wave changes, arrhythmias…

Physics of myocardial perfusion imaging (SPECT, PET): Radiotracers, perfusion, blood flow and viability

…uniform perfusion that may appear deceptively normal on SPECT. Detecting multivessel disease requires quantification of absolute coronary blood flow. This is possible using PET scanners…

Principles of myocardial perfusion imaging (SPECT, PET), coronary blood flow and flow reserve (CFR)

…coronary artery disease (CAD). It offers visual and numerical insights into myocardial blood flow under rest and stress conditions. MPI uses radiotracers in combination with…

Arterial Hypertension: Definition, Diagnosis and Out-of-Office Measurement

Cardiology Definition and pathophysiology Blood pressure is a continuous cardiovascular exposure rather than a binary distinction between normotension and hypertension. Its long term relationship with…

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