Generally, while pulse rate reflects heart rate; it’s not necessarily so always. Having said that a pulse rate of 50 if it’s occasional and for few beats it may be technical. Pulse and BP are interconnected. Knowing BP is useful.
Pulse has a normal range. In adult it varies through out the day hovering round 70’s. But it can jump to higher levels with activity and return to a lower level.
Indeed, at nights it can drop down to 50 too!
Health Tips
A clinical review by your physician is useful and I recommend it strongly .
Best wishes