Nurse Mary Dexter -

: Repeated small doses of potassium nitrate were nearly undetectable by forensic science, allowing her to mask murders as natural complications of a patient's failing heart.

Mary selected methods that exploited the underlying vulnerabilities of her post-heart attack patients. Her approach varied across adaptation timelines to maximize forensic deniability. nurse mary dexter

: Dexter discovered Mary's activities when Harry was hospitalized for a heart attack and began deteriorating under her "care". : Repeated small doses of potassium nitrate were

Nurse Mary Dexter's remarkable story is a testament to the impact one person can have on the lives of others. Her dedication, expertise, and kindness have made her a beloved figure in the medical community, and her legacy will continue to inspire future generations of nurses and healthcare professionals. As we reflect on her journey, we are reminded of the transformative power of compassion and care, and the enduring difference that one person can make in the world. : Dexter discovered Mary's activities when Harry was

In certain depictions, she utilized consecutive, low-level doses of potassium nitrate delivered via syringe. The human body naturally processes large quantities of potassium, making the buildup lethal but nearly unnoticeable to standard forensic pathology.