An MSP has called on the new NHS Tayside management team to ensure £2.7 million taken from charity funds is paid back.
Jenny Marra said interim chairman John Brown and chief executive Malcolm Wright “must fix the mistakes immediately”.
The dispute centres on the Tayside Health Fund, which holds donations and legacy money for use outside the health board’s core funding.
The endowment fund is set aside for small items for individual patients, staff training and improvements to facilities, or the purchase of equipment “which is additional to that which would be provided in the course of normal service delivery and paid for out of core funding”.
NHS Tayside was said to have broken rules to fund projects already approved by the board, with the cash spent on resources including an IT system. Former chairman Professor John Connell and chief executive Lesley McLay quit last week after pressure from Health Secretary Shona Robison.
Ms Marra, who represents the North East region at Holyrood, said: “One of the first questions the interim management at NHS Tayside must answer is when the charity money will be paid back.
“This money was not raised by the people of Dundee and Tayside to fund day-to-day services or cover the board’s poor financial management.
“The people who gave generously need to be reassured it will now be spent as they intended.
“The health secretary has accepted this money was not used appropriately. The new management of NHS Tayside must fix these mistakes quickly.”
The board met on Tuesday to review the situation.
A response is to be sent to the Office of the Scottish Charity Regulator (OSCR) at the end of this week.
Mr Brown said it was important the new board showed “complete transparency” in relation to the fund.
A Scottish Government spokeswoman said: “The Office of the Scottish Charity Regulator is considering NHS Tayside’s use of endowment funds and we will expect the board to take any necessary actions, including managed reimbursement, should that be required as a result of its findings.”