Cardiology Flashcards
ACEi x3 examples?
Ramipril
Enalapril
Lisonipril
Which drug is most likely to induce postural hypotension as a side effect?
Calcium antagonist
ACEi side effects? Think main and 2 more..
Dry cough
Bradykinin rash
Hypotension
ARB - angiotensin receptor blockers example?
Candesartan
Why give ARB?
Alternative to ACEi if unwanted side effects are being observed (e.g. dry cough)
Amiodarone is an example of?
Antiarrhythmics
What can amiodarone cause potentially?
QT prolongation - potentially fatal
Beta blockers CI?
Asthma as can induce bronchospasms
x3 main side effects of beta blockers?
Headache, fatigue, bradycardia
x3 examples of beta blockers?
Bisoprolol, metoprolol, atenolol
Aspirin mechanism of action?
COX inhibitor
Stops platelets sticking together
Warfarin mechanism of action?
Vitamin K antagonist, stopping production of 1972 clotting factors
Apixaban - why used instead of Warfarin?
NOAC which does not require INR monitoring (using Prothrombin time)
Bendroflumethiazide is a diuretic that will act where?
DCT
Clopidogrel mechanism of action?
P2Y12 inhibitor preventing platelet activation and preventing them sticking to the endothelium
Calcium channel blockers x3 examples?
Amlodipine, diltiazem, nifedipine (verapamil)
x3 calcium channel blocker side effects?
Flushing, headache, bradycardia
Lidocaine used for?
Ventricular tachycardias
Lidocaine mechanism of action?
Blocks inactivation gate of the sodium channel
Amlodipine v verapamil why is verapamil more effective anti-arrhythmic agent?
Lack of effect on the calcium channel at rest
Propranolol as a beta blocker why good after a heart attack in controlling arrhythmias?
Sodium channel blocker (is a beta-adrenoceptor blocker)
ACEi will reduce circulating level of which hormone?
Aldosterone
Why are beta blockers effective in chronic heart failure?
Block reflex SYMPA responses which stress failing heart
Tolerance is a potential SE for which drug?
Nitrates
MI immediate medication?
MONA - morphine, nitrates, oxygen, aspirin (or clopidogrel)
Nitrates are?
Vasodilatory
Beta blockers have what effect on heart?
Prolong filling so HR control (slow down), reduce myocardial contractility
Atenolol acts on which peripheral receptor?
Beta-1 adrenoceptor
Glyceryl trinitrate relieve pain of angina pectoris?
Dilation of vein to reduce preload on heart
Calcium channel blockers mechanism of action?
Block calcium channels, so reduce electrical conduction in the heart. Reduce contractibility - lead to arterial dilation.
Verapamil (CCB) side effect?
Constipation
Digoxin is an example of?
Antiarrhythmic drug - used in AF
What is the mechanism of action of beta-blockers?
Reduce renin release and cardiac contractility