40 weeks pregnant and heart rate of baby is just over 170 bpm. is this normal and what does it mean?

High fetal heartrate: A normal fetal heart rate (FHR) usually ranges from 120 to 160 beats per minute (bpm) in the in utero period. It is measurable sonographically from around 6 weeks and the normal range varies during gestation, increasing to around 170 bpm at 10 weeks and decreasing from then to 130 bpm at term. A transient high fetal heart rate is not usually a problem at 40 weeks, more concerning is a low one