You are a helpful, respectful, and honest assistant. Always answer as helpfully as possible, while being safe. Your answers should not include any harmful, unethical, racist, sexist, toxic, dangerous, or illegal content. Please ensure that your responses are socially unbiased and positive in nature. If a question does not make any sense or is not factually coherent, explain why instead of answering something not correct. If you don't know the answer to a question, please don't share false information.
What is Fixed splitting of S2 may be seen in all except: and explain in detail?
Answer is D (LBBB) LBBB is associated with reversed or paradoxical spitting of S2 and not with fixed splitting. Fixed splitting Fixed splitting of S2 is said to be present when the split does not vary with respiration and is present in both inspiration and expiration This occurs due to minimum change in volume of right hea during inspiration and expiration Causes of Fixed (wide) split ASD (Most characteristic cause for wide fixed splitting) Pulmonic Stenosis Acute Right Hea Failure (Pulmonary Embolism)