A mother from Virginia has been arrested for allegedly giving her five-year-old son an unknown substance that made him bleed and nearly killed him during a recent hospital stay.

According to a search warrant, 28-year-old Elizabeth Malone was taken into custody on April 25 at Inova Fairfax Hospital, after she was caught on a hidden camera injecting her child with a fluid that immediately made him ill.

Malone has been charged with child abuse and neglect. She is being held in the Fairfax County Jail without bond pending her next court appearance on May 25.

Mom charged: Elizabeth Malone, 28, has been charged with child abuse and neglect for allegedly giving her five-year-old son an unknown substance that made him bleed and nearly killed him

The warrant, first cited by NBC4, states that Malone brought her son to the hospital on April 19, saying he was bleeding from his mouth and tracheostomy tube.

Hospital staff said the boy had been admitted to the medical facility seven times since February, including twice for unexplained bleeding from his mouth, nose and the tracheostomy tube.

Doctors performed tests on the child that all came back normal, which raised concerns that it was Malone who was harming her son.

During the child's week-long hospital stay, staff contacted Child Protective Services and then the Fairfax County Police Department.

A hidden camera installed inside the boy's room at Inova Fairfax Hospital allegedly caught Malone in the act

Unbeknownst to Malone, a camera was installed inside her son's room. According to the warrant, on April 25 the device captured the mother taking a syringe from a medical cart, emptying its contents and filling it with an unknown fluid from her purse.

The 28-year-old was then observed administering the substance to her son through his mouth and nose, which caused a medical emergency, according to the document.

Doctors later told investigators that the five-year-old boy could have died without medical care.