This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: FMGE 2019, Subject name: Anatomy
[{'content': 'Raised JVP and not fall back of JVP is a feature of? \nSelect and explain. \nA. Atrial fibrillation, B. Atrial flutter, C. Ventricular tachycardia, D. Ventricular fibrillation', 'role': 'user'}, {'content': 'Answer: A \nExplanation: In Atrial fibrillation there is a disorganized, rapid, and irregular atrial activity with the loss of atrial contraction. This insufficient atrial contraction results in accumulation of blood in the atrium, which results in increase in JVP which does not fall back. In ventricular tachycardia, atria empty completely and leads to fall in JVP. In ventricular fibrillation, JVP raises at one time and falls at other time.', 'role': 'assistant'}]