Hello sir good morning.
You cannot check the blood pressure randomly because usually between show mild increase in the systolic blood pressure .
Before checking the blood pressure please lay down for 5 to 10 minutes and relax and check the BP e and usually will get the actual blood pressure.
Yes you can use digital BP apparatus but it is not accurate as Mercury BP apparatus.
Thank you very much.
Answered2019-08-29 07:07:07
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