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<TITLE>LabOne, Inc. Form 8-K dated October 27, 2005</TITLE>
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<FONT SIZE=5><STRONG><P ALIGN="CENTER">UNITED STATES SECURITIES AND EXCHANGE COMMISSION</P>
</FONT></STRONG><FONT SIZE=4><P ALIGN="CENTER">Washington, D.C. 20549</P>
</FONT><FONT SIZE=5><STRONG><P ALIGN="CENTER">FORM 8-K</P>
</FONT></STRONG><P ALIGN="CENTER">CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934</P>
<P ALIGN="CENTER">Date of Report: <U>October 27, 2005</P>
</U><P ALIGN="CENTER">Commission file number: 0-16946</P>
<B><U><FONT FACE="Times,Times New Roman" SIZE=5><P ALIGN="CENTER">LabOne, Inc.</P>
</B></U></FONT><P ALIGN="CENTER">10101 Renner Blvd.</P>
<P ALIGN="CENTER">Lenexa, Kansas 66219</P>
<P ALIGN="CENTER">(913) 888-1770</P>
<FONT FACE="Times,Times New Roman"><P ALIGN="CENTER">Incorporated in Missouri</P>
<P ALIGN="CENTER">I.R.S. Employer Identification Number: 43-1039532</P>
</FONT><FONT FACE="Times,Times New Roman" SIZE=2><P>&nbsp;</P>
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<B><P>Item 7.01  Regulation FD Disclosure</P></B>

<P>On October 27, 2005, LabOne, Inc. (the "Company") held a special meeting of shareholders.  At the special meeting, the Company's shareholders approved the August 8, 2005 Agreement and Plan of Merger ("Merger Agreement") by and among Quest Diagnostics Incorporated ("Quest Diagnostics"), Fountain, Inc., a wholly-owned subsidiary of Quest Diagnostics, and the Company.</P>

<P>Closing of the transaction contemplated by the Merger Agreement is expected to occur in early November, 2005.</P>

<P>This Current Report on Form 8-K may contain forward-looking statements that are based on management's current expectations and involve risks and uncertainties that could cause a different outcome, including but not limited to the satisfaction of all remaining conditions of closing under the Merger Agreement.</P>



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<I><FONT SIZE=5><P ALIGN="CENTER">Signatures</I></FONT><FONT FACE="Times,Times New Roman"> </P>
<P ALIGN="CENTER">Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized.</P>

<P ALIGN="CENTER">&nbsp;</FONT><FONT SIZE=5>LabOne, Inc.</P>
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      <P>Date:&nbsp;&nbsp;October 27, 2005</P></TD>
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      <P>By <U>/s/ <I>John W. McCarty</I></U><BR>John W. McCarty
      <BR>Executive V.P. and Chief Financial Officer
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LabOne, Inc. Form 8-K dated October 27, 2005
UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
FORM 8-K
CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934
Date of Report:
October 27, 2005
Commission file number: 0-16946
LabOne, Inc.
10101 Renner Blvd.
Lenexa, Kansas 66219
(913) 888-1770
Incorporated in Missouri
I.R.S. Employer Identification Number: 43-1039532
Item 7.01  Regulation FD Disclosure
On October 27, 2005, LabOne, Inc. (the "Company") held a special meeting of shareholders.  At the special meeting, the Company's shareholders approved the August 8, 2005 Agreement and Plan of Merger ("Merger Agreement") by and among Quest Diagnostics Incorporated ("Quest Diagnostics"), Fountain, Inc., a wholly-owned subsidiary of Quest Diagnostics, and the Company.
Closing of the transaction contemplated by the Merger Agreement is expected to occur in early November, 2005.
This Current Report on Form 8-K may contain forward-looking statements that are based on management's current expectations and involve risks and uncertainties that could cause a different outcome, including but not limited to the satisfaction of all remaining conditions of closing under the Merger Agreement.
Signatures
Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized.
LabOne, Inc.
Date:  October 27, 2005
By
/s/
John W. McCarty
John W. McCarty
Executive V.P. and Chief Financial Officer