using System;
using System.Text.RegularExpressions;
public class Example
{
    public static void Main()
    {
        string pattern = @"\d+-\d[\d.]*\s*\K\S+";
        string input = @"WBC                            4.27-11.40 k/uL                        3.64 (L)
RBC                            3.90-5.03 m/uL                         4.30
Hemoglobin                     10.6-13.4 g/dL                         13.0
Hematocrit                     32.2-39.8 %                            36.1
MCV                            74.4-87.6 fL                           84.0
MCH                            24.8-29.5 pG                           30.2 (H)
MCHC                           31.8-34.9 g/dL                         36.0 (H)
RDW-CV                         12.2-14.4 %                            13.2
Platelet Count                 150-400 k/uL                           175
MPV                            9.2-11.4 fL                            8.6 (L)
Neut%                          28.6-74.5 %                            43.1
Abs Neut (ANC)                 1.63-7.87 k/uL                         1.57 (L)
Lymph%                         15.5-57.8 %                            43.7
Abs Lymph                      0.97-4.28 k/uL                         1.59
Mono%                          4.2-12.3 %                             9.3
Abs Mono                       0.19-0.85 k/uL                         0.34
Eosin%                         0.0-4.7 %                              3.6
Abs Eosin                      0.00-0.52 k/uL                         0.13
Baso%                          0.0-0.7 %                              0.3
Abs Baso                       0.00-0.06 k/uL                         0.01";
        RegexOptions options = RegexOptions.Multiline;
        
        foreach (Match m in Regex.Matches(input, pattern, options))
        {
            Console.WriteLine("'{0}' found at index {1}.", m.Value, m.Index);
        }
    }
}
Please keep in mind that these code samples are automatically generated and are not guaranteed to work. If you find any syntax errors, feel free to submit a bug report. For a full regex reference for C#, please visit: https://msdn.microsoft.com/en-us/library/system.text.regularexpressions.regex(v=vs.110).aspx