The victim was released from the hospital Thursday night but has asked for privacy.
26-year-old Jaleel Steed was responding a call on Marshall Drive Wednesday afternoon when a man grabbed her and demanded drugs.
When the Hoboken EMT told her attacker she didn't back have what he wanted he stabbed her and ran down the stairs.
Fellow EMTs tried to help but police say it happened in a matter of seconds.
Alice Steed says her sister is resting.
"She took on this job to save people's lives and she turned out to be one who needed help," said Alice Steed, the victim's sister.
Turns out it was a phony call, a set up to get pharmaceutical drugs.
The volunteer EMT was taken back to Jersey City Medical Center in her own ambulance and is expected to make a full recovery.
"You're not going to let certain (things) interfere with her work. She'll keep working. She loves what she does," Alice Steed said.
Police are now tracing the original call.
The suspect is described a 5'8" tall man with a thin build.
He's still on the loose and no knife has been recovered.