Exhibit 99.2 LAB HOLDINGS, INC. PROXY SOLICITED BY THE BOARD OF DIRECTORS The undersigned hereby constitutes and appoints P. Anthony Jacobs and Steven K. Fitzwater and each of them, jointly and severally, as proxies, each with full power of substitution, for and in the name and place of the undersigned, to vote all of the shares of $1.00 par value common stock of Lab Holdings, Inc., a Missouri corporation (the "Company"), which the undersigned is entitled to vote at the Annual Meeting of stockholders of the Company to be held at the offices of LabONE, Inc., 10101 Renner Blvd., Lenexa, Kansas, on August 6, at 2:00 p.m. local time, and at any adjournment or postponement thereof, as fully and with the same effect as the undersigned might or could do if personally present, as indicated on the reverse side of this card. (To be signed on Reverse Side) (See Reverse Side) Please date, sign and mail your proxy card back as soon as possible! Annual Meeting of Stockholders LAB HOLDINGS, INC. August 6, 1999 Please Detach and Mail in the Envelope Provided FOR AGAINST ABSTAIN 1. Proposal to adopt the Agreement and Plan of / / / / / / Merger, as amended and restated, dated as of March 7, 1999 and the transactions contemplated thereby. FOR AGAINST ABSTAIN 2. Proposal to amend Paragraph B.4 of Article / / / / / / X of the Articles of Incorporation to change the definition of "Continuing Director Quorum" from nine continuing directors to two-thirds of the Continuing Directors. WITHHOLD FOR AUTHORITY THE NOMINEES TO VOTE FOR THE NOMINEES 3. Election of Class B Directors to serve until / / / / the merger or the 2002 annual meeting Nominees: John H. Robinson, Jr. Lan C. Bentsen FOR, except vote withheld from the following (Cumulative voting accepted. nominee: See Proxy Statement) - ------------------------------------- FOR AGAINST ABSTAIN 4. Proposal to ratify the selection of KPMG LLP / / / / / / as independent public accountants. 5. In their discretion, the proxies are authorized to vote upon all other matters that may properly come before the meeting. The Board of Directors recommends a vote FOR each of the proposals and a vote FOR John H. Robinson, Jr. and Lan C. Bentsen as directors and ______________________. If you sign and return this proxy it will be voted in the manner directed herein. This proxy contains discretionary authority with respect to matters as to which no choice is specified. IF YOU DO NOT DESIGNATE HOW YOUR SHARES ARE TO BE VOTED, THE PROXY WILL BE VOTED FOR JOHN H. ROBINSON, JR. AND LAN C. BENTSEN AND FOR PROPOSALS (1), (2) AND (4). PLEASE SIGN, DATE AND RETURN THE PROXY CARD PROMPTLY USING THE ENCLOSED ENVELOPE Signature ______________ Date ________, 1999 Signature __________________ Date __________, 1999 NOTE: Please sign exactly as name appears hereon. Joint owners should each sign. When signing as attorney, executor, administrator, trustee or guardian, please give full title as such. If a corporation or other entity, please sign in full corporate or entity name by President or other authorized officer and give full title. 2