This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Cardiovascular system, Subject name: Pharmacology
Digoxin is used in congestive hea failure is associated with 
Select and explain. 
A. Hyperophic obstructive cardiomyopathy, B. High output failure, C. Atrial fibrillation with high ventricular rate, D. All the above
C: Atrial fibrillation with high ventricular rate
Answer: C: Atrial fibrillation with high ventricular rate 
Explanation: Refer katzung 11e p 219 digitalis is used for the patients Who remain symptomatic even with diuretics and ACE inhibitors With hea failure who are in atrial fibrillation and acquired ventricular Control rate NOTE; digitalis is contraindicated in HOCM and high output failure