** Proteomics International Laboratories PIQ.AX slides ~10% to A$0.400, lowest since April 7

** Stock set for biggest intraday pct loss since February 28

** Medical tech co secures commitments to raise A$4.5 mln ($2.9 million) via placement at A$0.37/shr, a ~17% discount to last close

** Invites eligible shareholders to participate in a share purchase plan to raise additional A$1 million

** Says funds will be used to launch its suite of diagnostic tests

** About 137,666 shares traded in stock's busiest session since April 8

** PIQ loses 50% YTD

($1 = A$1.5562)

(Reporting by Manasi Dasa in Bengaluru)

((Manasi.DasaSundeep@thomsonreuters.com;))