The height measured by the doctor for Xiaojun's classmates is 168.5cm, and the length unit corresponding to the penultimate 8 of the data is cm, so the scale scale value used by the doctor is1cm;
∫ 1m = 100cm
∴ 168.5cm= 168.5× 1 100m= 1.685m.
So the answer is:1cm; 1.685.