** Cardiex CDX.AX jumps as much as 21.4% to A$0.051, highest since May 23; last up 11.9%
** Stock posts biggest intraday pct jump since February 17
** Digital health tech co says its arterial health monitor, CONNEQT Pulse, has received approval for use in Australia from the Therapeutic Goods Administration (TGA)
** About 270,569 shares change hands, 1.6x the 30-day avg
** CDX last up ~12%, trims YTD losses to 51.6%
(Reporting by Manasi Dasa in Bengaluru)
((Manasi.DasaSundeep@thomsonreuters.com;))