16 results
Positive Hoffmann's sign (finger flexor reflex) in a patient with Multiple Sclerosis

The Hoffmann's reflex test itself
Positive Hoffmann's ... Sclerosis The Hoffmann's ... A positive Hoffmann ... reflexes may be pendular ... #Hoffmanns #Hoffmans
Antiarrhythmics - Vaughan Williams Classification
Class I (Ia, Ib, Ic) - Na+ Channel Blockade
 • Slows depolarization
- Na+ Channel Blockade ... Beta Receptor Blockade ... III - K+ Channel Blockade ... - Ca2+ Channel Blockade ... Classes #cardiology #pharmacology
Glucagon: Bypassing β-Blockade

Glucagon pathophysiology and clinical applications in anaphylaxis and beta-blocker overdose

#Toxicology #Pharmacology #Pathophysiology #Glucagon #BetaBlocker
Glucagon: Bypassing β-Blockade ... #Toxicology #Pharmacology
Immune Reactions and Immunosuppressant Drugs

Glucocorticoids - Inhibition of cytokine synthesis, e.g., IL-1, IL-2
Muromonab-CD3 - Monoclonal antibody
Calcineurin
IL-2 receptor blockade ... Immunosuppressant #Drugs #Pharmacology
Pharmacologic Treatment of Hypertensive Emergencies in Pregnancy
Drug - Dose range - Onset/oeak/duration - Side effects
 -
Pharmacologic Treatment ... persistent fetal beta-blockade ... Obstetrics #OBGyn #HTN #Pharmacology
Dihydropyridine Calcium Channel Blockers

Mechanism of Action:  L-Type calcium channel blockade - Inhibits the influx of
calcium channel blockade ... Blockers #CCB #pharmacology
Antiarrhythmics - Vaughan Williams Classification:
CLASS 1 - Sodium Channel Blockers:
 • MOA: Block fast Na+ channels
CLASS 1A: Moderate Blockade ... CLASS 1B: Weak Blockade ... CLASS 1C: Strong Blockade ... Vaughan #Williams #Pharmacology
Antiarrhythmics Pharmacology Summary
Cardiac Conduction Phases:
Phase 0 - Ventricular Depolarization:
 • Na+ channels open leading to a
Antiarrhythmics Pharmacology ... CLASS 1A: Moderate Blockade ... CLASS 1B: Weak Blockade ... CLASS 1C: Strong Blockade ... Antiarrhythmics #Pharmacology
Class I Antiarrhythmics and their Key Pharmacologic Properties

Class IA = Quinidine, Procainamide, Disopyramide ("Quarter PounDer")
Class IB
and their Key Pharmacologic ... • Na+ channel blockade ... Antiarrhythmics #Pharmacology
Pharmaceutical Management of Hyperthyroidism / Thyroid Storm
Beta-Blockers 
• Decreases sympathetic hyperactivity 
• Partially blocks peripheral conversion
pathway has been blocked ... ThyroidStorm #Management #Pharmacology