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 Hasse's formula used in pregnancy to? and explain in detail?
ANSWER: (A) Estimate fetal ageREF: Textbook of Forensic Medicine and Toxicology by Nagesh Kumar Rao - Page 321Hasse's formulaIf the crown heel length is known then the intrauterine age of fetus is calculated as:If CH length is up to 25 cm thenIU age = Square root of CH lengthIf the CH length is > 25 cm thenIU age = 1/5 of CH length