15 results
Drugs affecting the cardiac action potential. The sharp rise in voltage ("0") corresponds to the influx
Drugs affecting ... to the sodium-channel ... repolarizing eflux of potassium ... #Pathophys #Pharmacology ... Antiarrhythmics #Classes
Drugs that Impair Renal Potassium Excretion 

Decreased ENaC channel function: Amiloride, Triamterene, Pentamidine
Decreased Aldosterone Synthesis: Heparin,
Drugs that Impair ... Renal Potassium ... Decreased ENaC channel ... #Hyperkalemia #Pathophysiology ... #Pharmacology #
Potassium Channel Blockers - Medications
1. Cardiovascular Drugs
2. Psychiatric drugs
3. Other drugs
4. Synthetic opioids: Levomethadyl 
5. Opium
Potassium Channel ... Other drugs 4. ... Organophosphates #Potassium ... #Differential #Diagnosis ... #Pharmacology #
Antiarrhythmics - Vaughan Williams Classification:
CLASS 1 - Sodium Channel Blockers:
 • MOA: Block fast Na+ channels
Classification: CLASS ... 1 - Sodium Channel ... 3 - Potassium Channel ... Vaughan #Williams #Pharmacology ... #pathophysiology
Mechanisms of Drug-Induced Hyperkalemia 
 • Direct renin inhibitor (Aliskiren)
 • Renin release inhibition (NSAIDs, Beta-Blockers)
Mechanisms of Drug-Induced ... Heparin) • Sodium-channel ... #pathophysiology ... #pharmacology # ... potassium #medications
Antiarrhythmics Pharmacology Summary
Cardiac Conduction Phases:
Phase 0 - Ventricular Depolarization:
 • Na+ channels open leading to a
Antiarrhythmics Pharmacology ... Classification: CLASS ... 3 - Potassium Channel ... Antiarrhythmics #Pharmacology ... #pathophysiology
Class III Antiarrhythmics - Potassium Channel Blockers - Indications and Side Effects
Amiodarone
 • Suppression of VT
Class III Antiarrhythmics ... - Potassium Channel ... a-flutter (when other drugs ... #Channel #Blockers ... #pharmacology #
Common sodium channel blockers which cause QRS widening.

Anticonvulsants: 
 - Carbamazepine 
Antidysrhythmics:  
 - Group
Common sodium channel ... Antimalarial drugs ... widening #ECG #EKG #Pharmacology ... Medications #Toxicology #Diagnosis ... #Classes
Causes of Hypomagnesemia
Redistribution:
 - IV glucose
 - Correction of diabetic ketoacidosis
 - IV hyperalimentation
 - Refeeding
osmotic diuresis - Potassium ... renal disease Drugs ... #diagnosis #differential ... #medications #drugs ... #pharmacology #
Rhabdomyolysis - Differential Diagnosis and Management Summary

Trauma:
 • Immobilization, Crush iniury, Compartment syndrome, Electrical injury
Exertional:
 •
- Differential Diagnosis ... Drugs (Statins), ... Dermatomyositis) AKI - Pathophysiology ... Monitor potassium ... #Differential #Diagnosis