need help rattle on engine ??

i need some help with my car every time i turn the car on theres a ratt le like something is loose when i drive the car and go past 2 and 1/2 rpms the rattle starts and gets louder as the rpm goes up …does this mean my engine is done ?? i dont know what to do ?

rod nock…
you cant hear it in idle but soon as you rev past 1k its noticable.

so thats what it is dang that sucks guess i need to try and get a new motor