AESI and NATD Announce Their Merger Closing is Set for Monday, November 2, 1998.

TAMPA, Fla.--(BW HealthWire)--Sept. 28, 1998--

The Offer Will be to Shareholders of Record as of Close of Market

Friday, October 30, 1998

AESI Releases Some Highlights of its Master Plan

American Enterprise Solutions, Inc. ("AESI") and National Diagnostics, Inc. (OTC EBB:NATD) announced today that their reverse merger will close on November 2, 1998 on the same terms as previously announced. NATD will, as soon as possible, change its name to American Enterprise Solutions Inc. and its call symbol to AESI. AESI believes it can meet the requirements for national listing on NASDAQ and will file as soon as possible. AESI will adapt to NATD's fiscal calendar year. Its forward projections and run rate will be based on 1999. It will continue with Grant Thornton as its auditor and Foley & Lardner as its SEC and lead law firm.

AESI has restructured most of NATD's debt and operations to allow for the full integration of its diagnostic centers into AESI Community Health Enterprises. Its centers in Brandon and Sun City, FL will become part of the Community Health Enterprise of Tampa Bay, Inc. NATD's two centers in Jacksonville, FL will become part of the Community Health Enterprise of First Coast, Inc. (AESI North Florida operations).

AESI C.E.O, Mr. Chuck Broes, stated "a final agreement with Siemens Medical Systems, Inc. to refinance over $6M of NATD debt including a convertible component of $1.8M, substantially improved their financial position and cash flow". Mr. Broes further stated that AESI has established AES Financial, Inc. (AESF) in partnership with Mr. Simon Sinnriech and Mr. Steve Bracciale. AESI and AESF have secured a $10M line with Health Capital Resources to provide receivables financing to their clients. Mr. Broes went on to say that AESI has entered into a letter of intent with Laidlaw Capital Partners, LLC. for $30 Million in convertible debentures funding. The terms and conditions are to be defined with a funding target date on or before 12-15-98.

Dr. Benedict Maniscalco, AESI Chairperson, stated that AESI's mission is to develop, implement and manage up to 262 Community Health Enterprises (CHE) throughout the United States. The enterprises, he said, will provide the highest quality healthcare at the appropriate cost with real time outcomes.

Mr. Curt Allison, the current COO of NATD, has joined the AESI board and accepted the position of President of AESI Product and Services Group. He and his staff will assist the management of AESI product and service companies in the execution of their business plans. Currently, this group of companies includes: -0-

--   AESI Healthnet, Inc. (a five year old managed care triage service
     company), Tampa, FL
--   Building Blocks, Inc. (a five year old pediatric home healthcare
     company) with four California offices
--   Health Centers of Excellence, Inc. (10 to 20 year old of
     multi-specialty physicians practices) with five offices in Tampa,
     FL
--   Physician Resource Network, Inc. (a ten year old management
     service organization (MSO)), Tampa. FL
--   Parkside Recovery Centers, Inc. (a ten year old specialty
     hospital), Columbus, Ohio
--   Regional Healthcare Partners, Inc. (a new company formed in
     partnership with 501-C (non-profit) county healthcare systems),
     Tampa, FL

Dr. C.C. Nuckols, AESI President, stated that AESI is currently building six Community Health Enterprises (CHE) in the state of Florida, two in California and one in Ohio. He further described how AESI would expand each CHE to incorporate all of AESI's products and services, as well as the introduction of all other services from day care and family services to homecare and assisted living. He added that each CHE must be a single source provider of healthcare services.

Mr. Joe Neely, president of AESI Resources group, whose mission is to acquire profitable resource companies for AESI, including capital, marketing, technology, intellectual and corporate development companies. He stated "our resource companies have a dual mission of building their external client base while providing resources to AESI product and service companies and the CHE's. Some of the current AESI resource companies are:

--   AESI Capital and Consulting (a seven year old corporate
     reengineering and venture capital company (formally TMRCorp)),
     Atlanta, GA
--   AES Financial, Inc. (a newly formed receivable financing
     company), Tampa, FL
--   Decision Support Systems, Inc.(a five year old clinical pathway
     software systems with 33 teaching and acute hospital clients),
     Charlotte, NC

Mr. Neely also said that AESI has publicly announced that it is making a tender offer to acquire this year the controlling interest in Optimark Data Systems, Inc. (ODS), a Vancouver, B.C. company that is traded on the Vancouver Stock Exchange (VSE) and over the counter in the US (OPMK). ODS is a software firm with its systems installed in some of the most premiere university teaching institutions. ODS's new designs are being developed in concert with AESI and are fully Internet and Intranet compatible. They help create dynamic clinical and business pathways, giving AESI and its clients real time outcomes.

Mr. Neely went on to say that if AESI is successful with its tender offer to acquire ODS, AESI would change its name to AESI of Canada, Inc., move its domicile to Toronto, Ontario, Canada. Further, it would apply for listing on the Toronto Stock Exchange (as a subsidiary of AESI) and seek top Canadian board members and management to rollout AESI products and services in Canada.

Except for historical information, the matters discussed in this news releases that may be considered forward-looking statements may be subject to certain risks and uncertainties that could cause the actual results to differ materially from those projected, including uncertainties in the market, pricing competition, procurement and operating efficiencies, availability of acquisition candidates for AESI, and the ability to integrate acquired companies, the ability to secure the Company's financing, the ability to reach projected revenues and earnings, and other risks detailed from time to time in reports filed by the Company with the Securities and Exchange commission. The Company assumes no obligation to update the information in this release.