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 Conjugate of the diagonal is 'a' cm, obstetric conjugate will be: and explain in detail?
Ans. is d, i.e. (a -2) cmRef. Williams Obs. 24/e, p 32Obstetric conjugate cannot be measured clinically but can be diagnosed by substracting 1.5-2 cm from diagonal conjugate. Hence if diagonal conjugate is 'a' cm obstetric conjugate will be (a -2) cmObstetric conjugate normally measures 10 cm or more Q.The pelvic inlet is considered to be contracted, if obstetric conjugate is less than 10 cm. Q