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 Fetal cardiac activity is detected with Trans vaginal USG as early as? and explain in detail?
ANSWER: (A) 6weeksREF: USG in Obstetrics & Gynecology by Callen 4ch edition page 119-120Fetal cardiac activity is detected as early asWith Transvaginal USG6 weeks of gestational ageWith Transabdominal USG8 weeks of gestational age