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diagnosis management clinical differential cardiology pharmacology pathophysiology algorithm causes pocus signs ekg symptoms comparison neurology table ecg treatment syndrome electrocardiogram
Calcium Channel Blockers - Dihydropyridines vs Non-Dihydropyridines Dihydropyridines (amlodipine, felodipine, nifedipine, nicardipine) • SVR: Decrease • Inotropy:
Calcium Channel ... : No effect • Dromotropy ... Chronotropy: Slows • Dromotropy ... CCBs #Calcium #Channel
POCUS - Measuring Cardiac Output 1) Calculate LVOT Area 2) Calculate LVOT VTI 3) Calculate Cardiac Output SV = (LVOT
Cardiac Output SV ... CO (mL/min) = SV
Mean Arterial Pressure (MAP) Average arterial pressure throughout one cardiac cycle, systole, and diastole. Surrogate indicator of
Stroke Volume (SV ... the chronotropy, dromotropy ... #chronotropy #dromotropy ... cardiacoutput #Co #SV
Antiarrhythmics Pharmacology Summary Cardiac Conduction Phases: Phase 0 - Ventricular Depolarization: • Na+ channels open leading to a
Depolarization: • Na+ channels ... Phase • Ca++ channels ... Potential: • K+ channels ... CLASS 1 - Sodium Channel ... Block fast Na+ channels
Antiarrhythmics - Vaughan Williams Classification: CLASS 1 - Sodium Channel Blockers: • MOA: Block fast Na+ channels
CLASS 1 - Sodium Channel ... Block fast Na+ channels ... 3 - Potassium Channel ... MOA: Block K+ channels ... Block slow Ca++ channels
Antiarrhythmic Medications - Vaughan Williams Classification - Summary Table Class I agents - Sodium Channel Blockers⠀ Class II
agents - Sodium Channel ... agents - Potassium Channel ... agents - Calcium Channels
Inherited Defects in Kidney Tubule Epithelial Cells Renal glucosuria - Na+-dependent glucose cotransporter Cystinuria - Amino acid transporter Bartter
cotransporter, K channel ... , Cl channel, or ... barrtin (recruits Cl channel ... epithelial sodium channels ... epithelial sodium channels
Drugs affecting the cardiac action potential. The sharp rise in voltage ("0") corresponds to the influx
to the sodium-channel ... voltage-sensitive calcium channels
Stroke Volume & Cardiac Output Measurement on POCUS Accurately measure LVOT diameter: 1. Obtain PLAX 2. Zoom to
LVOT Diam/2) 2 SV
Antiarrhythmics - Sodium Channel Blockers Subclasses, Mechanisms, Indications, Side Effects la - Quinidine, Procainamide lb - Lidocaine, Mexiletine Ic -
Antiarrhythmics - Sodium Channel ... Antiarrhythmics #Sodium #Channel
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