Mr Katter has written to Queensland Health Minister, Lawrence Springborg, about the new individual contracts senior doctors are being asked to sign, warning him it could result in a mass exodus of senior doctors, consultants and specialists from the Queensland public health system.

``I've had 85 emails from senior doctors throughout Queensland over the last week or so, and every single one of them said they would seriously consider leaving Queensland Health unless the government makes an effort to re-negotiate on these contracts,'' Mr Katter said.

``This is not about money; it's about senior doctors being coerced into signing a contract that appears to be manifestly unfair and removes any enterprise bargaining and other employment rights.

``There's an inadequate process for dispute resolution, with no binding arbitration, a loss of unfair dismissal protections and no definition of the key performance indicators they'll be held to.

``In addition the contracts can be changed at any time unilaterally by Queensland Health; no wonder doctors have sought legal advice, and no wonder the advice is, `Don't sign'.'' 

Mr Katter said Mount Isa Hospital was especially vulnerable if its senior doctors decided to leave Queensland Health.

North West Hospital and Health Service chief executive  Sue Belsham said they were working through the process on new contracts.