The Narges Foundation said in a statement Mohammadi was moved by ambulance to a local hospital in Zanjan in northwestern Iran after prison doctors concluded her condition could no longer be managed inside the prison.
She was admitted to the coronary care unit, according to her lawyer Mostafa Nili.
Nili said Mohammadi had experienced extreme blood pressure fluctuations, acute chest pain and repeated episodes of severe distress in recent days. He said she first fainted after a sudden drop in blood pressure and was given IV fluids and anti-nausea medication in the prison clinic.
After emergency services arrived, Mohammadi initially declined transfer to a Zanjan hospital, citing warnings from two cardiologists that her history of three angiographies and stent placement made treatment in Zanjan dangerous and required care by her own medical team, Nili said.
A few hours later, she lost consciousness again. A neurologist then ordered urgent hospitalization, saying her neurological condition had become the immediate clinical priority despite her serious cardiac issues.
The foundation said Mohammadi’s family had sought proper medical care for weeks and described the hospital transfer as a “last-minute” step that may have come too late.
It said specialists had recommended her transfer to Pars Hospital in Tehran, where her own medical team could treat her.
According to the foundation, Zanjan’s forensic medical commission had already recommended a one-month suspension of her sentence for medical treatment, but prosecutors made it contingent on approval from Tehran.
Mohammadi was re-arrested on December 12, 2025, and sentenced on February 8, 2026, to an additional seven and a half years in prison, bringing her cumulative sentence to more than 18 years.