MIDTERM 01 - Cardiovascular Drugs Flashcards
Organ that acts as a pump of blood into the circulatory system
Heart
Term used to described the contractility of the heart
Inotropy
Term used to describe the rate and rhythm of the heart
Chronotropy
Term used to describe the conduction velocity of the heart
Dromotropy
Organ that carries blood to/from the heart and from/to the tissues
Blood vessels
Carries blood away from the heart (Types of blood vessels)
Arteries
Carries blood toward the heart (Types of blood vessels)
Veins
Exchanges substances between blood and the tissues (Types of blood vessels)
Capillaries
Responsible for oxygenation of blood (Types of circulation)
Pulmonary circulation
Responsible for oxygenation of tissues (Types of circulation)
Systemic circulation
Responsible for oxygenation of the heart (Types of circulation)
Coronary circulation
The most common cardiovascular disease; increases the risk for CHD, CHF, and renal failure
Hypertension
BP of 180 mmHg SBP or 120 mmHg DBP (Stages of hypertension)
Hypertensive crisis
No end organ damage (Stages of hypertension)
Hypertensive urgency
With end organ damage (Stages of hypertension)
Hypertensive emergency
“Essential” hypertension; 80-95%; due to familial, environmental, and genetic factors (Types of hypertension)
Primary hypertension
5-20%; due to other disease (Types of hypertension)
Secondary hypertension
According to this mechanism, the greater the heart muscle is stretched during filling, the greater is the force of contraction in the aorta
Frank-Starling mechanism
__________ is related to NaCl intake
Intravascular volume
Leads to increase in blood pressure and tubular reabsorption of Na+ (Examples of alpha-adrenergic antagonists)
ɑ1 Drugs
Leads to a decrease in blood pressure (Examples of alpha-adrenergic antagonists)
ɑ2 Drugs
Leads to an increase in blood pressure and renin release (Examples of beta-adrenergic antagonists)
β1 Drugs
Leads to a decrease in blood pressure (Examples of beta-adrenergic antagonists)
β2 Drugs
Reflex that causes a decrease in sympathetic outflow and increase in parasympathetic outflow whenever an increase in blood pressure occurs
Baroreceptor reflex
Refers a hormone system that controls blood pressure, fluid balance, and electrolyte levels
Renin-Angiotensin-Aldosterone System (RAAS)
Hormone responsible for vasoconstriction and NaCl reabsorption; part of RAAS
Angiotensin II
Hormone responsible for NaCl reabsorption; part of RAAS
Aldosterone
Inhibits Na+ reabsorption; reduces fluid buildup in the body (Types of antihypertensive drugs)
Diuretics
Blocks the NCC in the distal convoluted tubule (DCT) (Types of diuretics)
Thiazide diuretics
Used for mild or moderate hypertension and normal renal and cardiac function (Types of diuretics)
Thiazide diuretics
Prototype drug of thiazide diuretics
Hydrochlorothiazide (HCTZ)