Q. Should one suffering from diabetes and has to undergo multiple finger pricks each day including Shabbos to show current sugar level, make an effort to obtain a Continuous Glucose tester. This tester uses a sensor placed under the skin to measure blood sugar level; transmits automatically each reading to a small recording device worn on your body, a nearby smartphone or a smart watch; an alarm can be set to alert of blood sugar levels that are too low or too high. Should one make an effort to use this method to diminish chilul Shabbos?
A. On question 2010 we wrote; “In regard to acquiring a Continuous Glucose Monitor, the Rov’s opinion is that if it also benefits the health perspective of the patient, and it is maintained on during the entire Shabbos, one should make an effort to acquire it. In respect to carrying the CGM where there is no eiruv, see question 1999 on an Epi-Pen, and 1732 on ankle monitors.”
Horav Shlomo Miller Shlit’a maintains that an effort should be made to acquire such tester and avoid the Biblical chilul Shabbos involved in the multiple finger pricks to draw blood done in the conventional method.
Rabbi A. Bartfeld as advised by Horav Shlomo Miller and Horav Aharon Miller Shlit’a