Exhibit 32.1

CERTIFICATION PURSUANT TO

18 U.S.C. SECTION 1350

AS ADOPTED PURSUANT TO

SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with the Amendment No.1 to the quarterly report of Hypertension Diagnostics, Inc. (the “Company”) on Form 10-Q for the quarter ended December 31, 2011 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, Kenneth W. Brimmer, Chief Executive Officer and Chief Financial Officer of the Company, certify, pursuant to 18 U.S.C. 1350, as adopted pursuant to 906 of the Sarbanes-Oxley Act of 2002, that:

(1) The Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

(2) The information contained in the accompanying Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

/s/ Kenneth W. Brimmer

Chief Executive Officer and Chief Financial Officer

Date:  February 17, 2012

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