Smooth muscle contraction
Smooth muscle relaxation
Decreased myocardial oxygen demand
Increased myocardial oxygen demand
Increased left ventricular end-diastolic volume
Increased atrial pressure
Change position slowly.
Take pulse daily.
Reduce salt intake.
Chew the sustained-release tablets.
Inhibit conversion of angiotensin II to angiotensin I
Vasoconstriction and sodium depletion
Promote sodium and water retention
Stimulate vasodilation and inhibit sodium depletion
“I should not take my pills with food.”
“I need to increase my intake of orange juice. bananas. and green vegetables.”
“I will avoid coffee. tea. and colas.”
“I will use salt substitutes that are not high in potassium.”
“It often takes a while before the right medication is found.”
“The doctor is just trying to help you control your blood pressure.”
“The action of this drug is to work on both the arteries and to remove excess fluids.”
“This drug is used when other drugs have failed.”
Reduced renal blood flow
Reduced sodium and water excretion
Increased peripheral vascular resistance
Increased sodium excretion and potassium reabsorption