Girls, good day everyone ??? Question: who was prescribed RDS of the f…

Girls, good day everyone ??? Question: who was prescribed RDS of the fetus and ultrasound? And at what gestational age? Just I was prescribed this at 24 weeks of pregnancy, in 3 weeks they will do it, on the internet all kinds of nonsense is written, and others say that nobody has been prescribed, even those at 30 weeks of pregnancy...