Context: "platelets," kesshouban 血小板, drawn as cute anime girls, receive their marching orders.
{hagurenai} you ni {katte na} koudou wa shinai koto! はぐれないように勝手な行動はしないこと！ Do not [act on your own] as {to not stray away}!
katte 勝手 (refers to doing things without consulting others.)
hagureru 逸れる To stray away [from a group]. To lose sight of [one's group].
hai'! はいっ！ Yes, [ma'am]!
hoka no ko to kenka shinai koto! 他の子とケンカしないこと！ Do not fight with other kids!
hai'! はいっ！！ Yes, [ma'am]!
jiipiiwanbii toka wo chanto tsukatte tobasarenai you ni suru koto! ＧＰＩｂとかをちゃんと使って飛ばされないようにすること！ Do use GPIb, etc. properly so [you don't get sent flying away]!
GPIb, Glycoprotein Ib, allow platelets to adhere at sites of injury.
