Antihypertensives Flashcards
(15 cards)
What is the mechanism of action of ACE inhibitors?
Inhibits ACE, preventing the conversion of angiotensin I to angiotensin II, leading to vessel dilation and reduced blood pressure.
Angiotensin II constricts vessels, increasing BP; ACE inhibitors help manage BP by keeping vessels dilated.
List three therapeutic uses of ACE inhibitors.
- Hypertension
- Heart failure
- Myocardial infarction
These are the main conditions for which ACE inhibitors are prescribed.
What are the normal renal values for BUN and Creatinine?
- BUN: 7-20 mg/dL
- Creatinine: 0.6-1.2 mg/dL
Monitoring renal function is crucial as ACE inhibitors can worsen kidney failure.
What suffix is commonly associated with ACE inhibitors?
-pril
This suffix helps identify the class of medication.
What should be monitored while a patient is on ACE inhibitors?
Renal function
ACE inhibitors can worsen kidney failure or cause renal impairment.
What are some common side effects of ACE inhibitors?
- Orthostatic hypotension
- Dizziness
- Angioedema
- Dry cough
- Elevated potassium levels
Angioedema and elevated potassium can be dangerous.
True or False: ACE inhibitors are teratogenic and safe during pregnancy.
False
ACE inhibitors are not safe during pregnancy.
What dietary modifications should patients on ACE inhibitors make?
- Avoid potassium-containing foods
- Avoid potassium pills
- Be cautious with salt substitutes
Salt substitutes often contain potassium, which should be avoided.
What is a key patient education point regarding medication discontinuation?
Do not stop medication suddenly; it needs to be tapered.
Stopping suddenly can lead to rebound hypertension.
What is the mechanism of action of Angiotensin II Receptor Blockers (ARBs)?
Blocks Angiotensin II
This action lowers blood pressure similar to ACE inhibitors.
List the medication names for ARBs.
- Losartan
- Olmesartan
- Valsartan
- Azilsartan
- Candesartan
ARBs also share the common suffix -sartan.
What is the main difference between ACE inhibitors and ARBs regarding heart rate?
ARBs lower heart rate, while ACE inhibitors do not directly affect heart rate.
This distinction is important for understanding their effects on cardiovascular health.
Which class of medication is known to produce fewer side effects: ACE inhibitors or ARBs?
ARBs
Patients may tolerate ARBs better than ACE inhibitors due to fewer side effects.
Fill in the blank: ACE inhibitors are excreted by the _______.
kidneys
This is why renal function must be monitored.
What is the mnemonic for remembering ACE inhibitor side effects?
Angioedema, Cough, Elevated K+
This mnemonic helps recall significant side effects associated with ACE inhibitors.