The Daily Mail said an 86-year-old woman who suffered from memory loss, diminished eyesight and poor hearing would sit chatting to Sams, not realising her carer was systematically rifling her purse for bundles of cash.
Another victim lost £900 ($1700) to Sams whilst lying seriously ill and helpless awaiting the arrival of an ambulance.
Sams was caught when she took an elderly victim, who did not have the mental capacity to understand what she was doing, to the bank in a bid to withdraw thousands of pounds.
Detective Constable Carolyn Willacy described Sams as a "callous, heartless individual".
"When later interviewed by police and asked why she had chosen to steal from this particularly vulnerable patient, Sams said 'because it was easy'," Ms Willacy said.
Sams faces a Proceeds of Crime hearing, and police say they are trying to recover the stolen money.
