 HCA Healthcare Inc. shares HCA, -2.08 slid 10.6 in premarket trade Friday, after the operator of hospitals and walk-in centers missed revenue estimates for the first quarter and lowered its guidance, hurt by inflation and rising costs. The company posted net income of 1.273 billion, or 4.14 a share, for the quarter, compared with 1.423 billion, or 4.14 a share, in the year-earlier period, missing the 4.25 FactSet consensus. 