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Peripheral Artery Disease: Diagnosis, Ankle–Brachial Index and Risk Management

…as limb complications. Atherosclerotic lesions generally affect large and medium sized arteries. Pathological features include plaque formation with calcium deposition, medial thinning, destruction of muscular…

Antianginal Therapy: Beta-Blockers, Calcium Channel Blockers, Nitrates, and Ranolazine

…long term cardiovascular outcomes in CCS. General strategy For most patients, initial therapy consists of a beta blocker and/or a calcium channel blocker (CCB…

Coronary Artery Calcium Scoring: Prognostic Use in Practice

…a marker of the broader atherosclerotic process, including non calcified plaques that are not directly visualized by calcium scoring. In contrast, coronary CT angiography (CCTA)…

ECG changes caused by antiarrhythmic drugs, beta blockers & calcium channel blockers

…drugs, beta blockers and calcium channel blockers (inhibitors). The reader will notice that most of these drugs are contraindicated in patients with structural heart disease…

🟠 Clevidipine

…nitroglycerin, nitroprusside, and nicardipine in hypertensive emergencies. Time to onset of action 2 4 minutes Duration of action 5 15 minutes Delivery IV (infusion). Dose…

🟠 Nicardipine

…Mechanism of action Nicardipine is a dihydropyridine calcium channel blocker (CCB). Nicardipine inhibits the influx of extracellular calcium in the myocardial and peripheral vascular smooth…

🟠 Nitroprusside

…arterioles and veins via generation of cyclic GMP, which then activates calcium sensitive potassium channels in the cell membrane. Time to onset of action : 1…

Cardiac electrophysiology: Action potential, automaticity and vectors

…in all cardiac cells but its appearance varies depending on cell type. During de and repolarization ions (Na + [sodium], K + [potassium] and Ca 2+ [calcium…

ECG changes due to electrolyte imbalance (disorder)

…cardiac action potential may be altered by electrolyte imbalance, owing to changes in intra and extracellular electrolyte concentrations. Some electrolyte imbalances are clinically negligible (from…

Acute kidney injury: quick reference for management

…panel: creatinine, urea, sodium, potassium, bicarbonate or blood gas, calcium, phosphate, glucose and a full blood count. 5. Take a urine dipstick and, where the…

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