How long should the mpi be retained? permanently 25 years 50 years 10 years?

the correct answer is 10years.

Explanation:

The Master Patient Index Module is essential for the accurate sharing of clinical data across healthcare organizations. It is a central component of any future-oriented eHealth( it is the support that the cost-effective and safe use of information and communications technologies offers to health and related fields). Using a powerful matching algorithm, it compares patient data from disparate systems, links related records under an Enterprise Unique Identifier and creates a Golden Record.

conduction is the transfer of thermal energy (heat in transfer) due to collisions between the molecules in the object. collisions between adjacent atoms and molecules transfer kinetic energy from the warmer to the cooler object. the objects must be in physical contact.

it's all four options.