Hypertension — pathophysiology?
Increased peripheral resistance and volume expansion.
ACE inhibitors — role?
Block angiotensin II formation, causing vasodilation.
Diuretics — mechanism?
Increase renal sodium and water excretion.
Hypertension — definition?
High blood pressure ≥130/80 mmHg.
Primary vs secondary hypertension — difference?
Primary no identifiable cause; secondary due to underlying condition.
Vasoconstriction — effect on BP?
Increases peripheral resistance and BP.
RAAS — role in hypertension?
Regulates blood pressure; overactivation raises BP.
Diuretics — main action?
Increase sodium and water excretion.
ACE inhibitors — target?
Block angiotensin-converting enzyme.
Vaughan Williams Class I — drug type?
Na+ channel blockers for arrhythmias.
Answer 10 questions on Hypertension and Heart Drugs Overview.
1. What does the Vaughan Williams classification refer to in cardiology?
2. Who developed the Vaughan Williams classification system for antiarrhythmic drugs in 1970?
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