Hypertension Medications Flashcards
What are ACE (Angiotensin-Coverting Enzyme) inhibitors used for?
Lower blood pressure by preventing conversion of angiotensin I to angiotensin II.
Prevent vasoconstriction and sodium and water retention.
Which class of hypertension medicines should you give the first dose at bedtime to minimize “first dose” syncope?
Your Alpha-Adrenergic Blockers.
Examples: doxazosin, prazosin, terazosin
What are some nursing considerations when giving ACE inhibitors?
- Monitor client for first dose syncope, persistent dry cough, hyperkalemia
- Monitor client for manifestations of angioedema, for example swelling of facial features and tongue, which would result in the closing of their airway
- Contraindicated in renal artery stenosis and pregnancy
- Report changes in WBC count
What are some examples of Beta-Adrenergic Blocking Agents?
End in “olol”
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Acebutolol
Atenolol
Metoprolol
Lopressor
Nadolol
Propranolol
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Inhibits flow of calcium ions across the cell membrane of vascular tissue and cardiac cells.
Relaxes arterial smooth muscle, lowering peripheral resistance through vasodilation.
Calcium-Channel Blockers
Examples of angiotensin-converting enzyme inhibitors (ACE)
End in “pril”
Benazepril Captopril Enalapril Fosinopril Lisinopril Ramipril Perindopril
Prevents vasoconstriction and sodium and water retention
ACE inhibitors
Block alpha-receptors in vascular smooth muscle.
Decrease vasomotor tone and vasoconstriction.
Reduce serum levels of low and very low density lipoprotein
Alpha-Adrenergic Blockers
Which class of hypertension medications are good for diabetics?
ACE inhibitors
Use is contraindicated in asthma, chronic lung disease, bradycardia, or heart block.
Beta-Adrenergic blocking agents
(This is because beta cells dilate the blood vessels so beta blockers will cause constriction, which can cause shortness of breath)
May cause constipation.
Calcium-channel blockers
End in “pine”
With exception of diltiazem and verapamil
Reduces blood pressure by preventing beta receptor stimulation in the heart, resulting in decreased heart rate and cardiac output.
Beta-Adrenergic Blocking Agents
End in “olol”
Interferes with renin release by kidneys, decreasing the effects of angiotensin and aldosterone.
Beta-Adrenergic blocking agents
End with “olol”
Stimulate the alpha2-receptors in the central nervous system to suppress sympathetic outflow to the heart and blood vessels.
Decreases cardiac output and vasodilation, reducing blood pressure.
Centrally acting sympatholytics
Ex: clonidine, guanfacine, methyldopa, reserpine
Dry mouth and sedation are common adverse effects.
Centrally acting sympatholytics