31 Questions
What is the recommended duration for wearing a Nitroglycerin patch?
8-12 hours
Which action should be avoided when taking Isosorbide Dinitrate?
Taking it with grapefruit juice
What is the main use of Cardiotonic-Inotropic drugs in the context of heart failure treatment?
To provide inotropic support in heart failure
What is the primary mechanism of action of Nifedipine, the prototype used for long-term prevention of angina?
Inhibits calcium influx to produce vasodilation
Which type of patient would benefit from Isosorbide Dinitrate based on its mechanism of action?
A patient with coronary artery disease
What should be done before applying a Nitroglycerin patch to a patient?
Removing the old patch and washing the skin
What is the primary mechanism of action of antianginal drugs like nitroglycerine?
Stimulating nitric oxide formation leading to vasodilation
Why should men taking Viagra avoid using nitroglycerine as an antianginal treatment?
Both drugs cause vasodilation and can lead to severe hypotension
What is the recommended procedure if chest pain is unrelieved after taking three doses of sublingual or transmucosal spray of nitroglycerine?
Call emergency services (911)
Why is it important to store nitroglycerine in an airtight and dark container?
To avoid moisture and inactivation by light, heat, and air
What is the reason behind advising patients to sit or lie down after taking nitroglycerine?
To avoid syncope due to hypotension
Why is it recommended to avoid storing nitroglycerine in the bathroom?
To maintain its potency by avoiding exposure to moisture and heat
What is the mechanism of action of digoxin?
Inhibits NA-K ATPase enzyme
What symptom is NOT associated with digoxin toxicity?
Tachycardia
Which electrolyte imbalance increases the risk of digoxin toxicity?
Low Magnesium (Mg)
What is the antidote for digoxin toxicity?
Digibind
Which medication class is used to decrease the heart's workload and prolong survival in heart failure?
Beta Adrenergic Blockers
What is the primary action of milrinone in treating heart failure?
Vasodilation and decreased afterload
What is the main reason for using calcium channel blockers in the context provided?
To control heart rate
Which adverse effect can be worsened by the negative inotropic effects of calcium channel blockers?
Myocardial infarction size
What is the mechanism of action of adenosine in the context provided?
Depresses conduction at the AV node
How does adenosine differ from calcium channel blockers in terms of half-life?
Adenosine has a shorter half-life
Why is it important to administer adenosine quickly?
To prevent its elimination before reaching the heart
What effect do calcium channel blockers have on the drive to compensate for increased myocardial oxygen demand?
Suppress the drive
Which drug is the first choice for heart failure (HF) according to the text?
Spironolactone
What is the mechanism of action of class Ia antiarrhythmic drugs?
Reduces automaticity and slows conduction throughout the cardiac system
Which class of drugs is used for atrial and ventricular dysrhythmias, angina, and tachycardia?
Beta adrenergic blocking agents
Which drug has vasodilating effects and decreases systemic vascular resistance (SVR)?
Hydralazine
What is a common adverse effect of amiodarone as mentioned in the text?
Hypotension and bradycardia
Which antiarrhythmic drug is contraindicated for atrial dysrhythmias?
Propranolol
What is the primary use of hydralazine as per the text?
Block action of angiotensin II for lower blood pressure
Test your knowledge of the drug names, classes, mechanisms of action, uses, adverse effects, contraindications, and nursing implications of antianginal drugs. Focus on how these drugs stimulate nitric oxide formation, act on smooth muscles of peripheral and coronary vascular bed, and reduce workload of the heart.
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