Exhibit 10.37


                           PROMISSORY NOTE

$150,000                                          September 7, 1995
                                                    Lenexa, Kansas

FOR VALUE RECEIVED, BERT H. HOOD ("maker") promises to pay to the order of 
LABONE, INC., a Delaware corporation ("payee"), at 10310 W. 84th Terrace, 
Lenexa, Kansas, or at such other place as payee may from time to time 
designate in writing, the principal sum of One Hundred Fifty Thousand 
Dollars ($150,000), with interest accruing on the unpaid balance of the 
principal sum from the date hereof until paid at a rate of seven and three-
quarter percent (7.75%) per annum.

The principal sum of this Promissory Note shall be paid in full on the 
earlier of (a) September 2, 1996, or (b) the date of the termination of 
employment of maker pursuant to the terms of the Employment Agreement 
between maker and payee, dated August 5, 1993, as amended as of November 9, 
1993 ("Employment Agreement"), the terms and provisions of which are 
incorporated herein by reference. The principal sum of this Promissory Note 
may be prepaid in whole or in part at any time, without penalty, at the 
option of maker.

Interest on this Promissory Note shall be payable quarterly on December 1, 
March 1, June 1 and on the day that the unpaid balance of the principal sum 
is paid in full. Maker agrees that any sums due payee by maker under this 
Promissory Note may, at the option of payee, be set off and applied against 
any sums due maker by payee under the Employment Agreement or otherwise.

Maker waives presentment for payment, demand, protest and notice of demand, 
protest and nonpayment. In the event that it should become necessary in the 
opinion of payee to employ counsel to collect or enforce this Promissory 
Note, maker agrees to pay all costs, charges, disbursements and reasonable 
attorney's fees incurred by payee in collecting or enforcing payment of 
this Promissory Note. The failure of payee to exercise any option or right 
to which payee may be entitled shall not constitute a waiver of the right 
to exercise such option or right at a subsequent time. This Promissory Note 
has been executed and delivered in, and is to be construed and enforced 
according to and governed by, the laws of the State of Kansas.


                                              /s/ Bert H. Hood
                                            --------------------------
                                                  BERT H. HOOD