While total revenues were up less than 1 percent, the Diagnostics division grew revenues 5 percent. Discovery & Analytical Solutions dipped 2 percent.
Key test growth drivers in the quarter included tuberculosis, Cardio IQ, drug monitoring, and hemapathology blood cancer testing, "all of which showed revenue growth" in Q1.
The Life Sciences business grew 10 percent year over year, while the Diagnostics business inched up 1 percent.
The company said it has faced competitive pressures in its diagnostics business, partially offset by organizational streamlining efforts it initiated last year.
The firm said revenues from its precision oncology business increased 98 percent in Q4, driven by higher testing volume and increased revenue per test.
The firm said it secured a record 14 new contracts of T2Dx instruments in the fourth quarter, which was at the high end of its guidance for the second half of 2018.
The company said its testing services revenues for the quarter rose nearly 120 percent year over year.
The firm will expand on its MSI assay for use in immunotherapy while developing liquid biopsy assays to monitor patients post therapy and for recurrence.
The firm missed the consensus Wall Street estimate on the bottom line, even as its ePlex analyzer Q4 revenues more than doubled year over year to $12.1 million.
The company said test volume for its Cologuard colorectal cancer test rose 66 percent during the quarter to 292,000.