を測ります

measure

→ を
phrase Rare #39,908
measure Used with things that can be measured, such as temperature, blood pressure, and eyesight. The polite form of を測る.
JA: これから体温を測ります。
EN: I’m going to measure your temperature now.

血圧を測ります

I’m going to take your blood pressure.

— 人生スイッチ (2014)

それでは体温を測ります

All right, I’m going to take your temperature now.

視力を測ります

Let's check your eyesight.

血圧を測ります

I'll take your blood pressure.