CNA or companion that has a lot of medical care background

We are looking for a lovely, kind Spanish speaking CNA or companion to help with a 93 year old couple. They have heart, kidney and dementia problems. They need someone that can cook a specific diet for them that will be heart and lung properties… The hours are 9 to 9, or 8:30 – 8:30. KIndness and patience is of utmost importance!