What is the purpose of using Hasse's formula in pregnancy?
Hasse's rule is employed in calculating the age of fetus by its length. During first five months of pregnancy, the length in cms is square of the age in months. During the second five months of pregnancy, length in cms divided by 5 gives age in months. Ref: Textbook of forensic medicine and toxicology by Krishan Vij, 3rd edition, Page 558.
Estimate fetal age
Identify fetal blood group
Identify fetal sex
Identify fetal congenital malformations