Media playback is unsupported on your device Media caption Nurse Alex Wubbels was following hospital protocols when she was arrested in Utah

A US police officer who forcibly arrested a nurse for refusing to take a blood sample from an unconscious patient has been fired.

Footage showed nurse Alex Wubbels screaming for help as Detective Jeff Payne manhandled and handcuffed her at a hospital in Salt Lake City, Utah.

He has lost his job and James Tracy, his watch commander, was demoted two ranks from lieutenant to officer.

Their boss said their actions had undermined public trust.

"I have lost faith and confidence in your ability to continue to serve as a member of the Salt Lake City Police Department," Chief Mike Brown wrote in a letter to Mr Payne, who had served with the department for 27 years.

"I am deeply troubled by your lack of sound, professional judgment and your discourteous, disrespectful and unwarranted behavior, which unnecessarily escalated a situation that could and should have been resolved in a manner far different from the course of action you chose to pursue."

Image copyright Salt Lake City Police Image caption Detective Jeff Payne (L) was fired and James Tracy, his watch commander, was demoted two ranks

Lawyers for both officers said they planned to appeal against the decision.

Ms Wubbels's lawyer, Karra Porter, told the Deseret News on Tuesday: "If detective Payne does not believe this is a fireable offense, then I'm glad detective Payne will not be out on the street in uniform tomorrow."

Mr Payne was sent to University of Utah Hospital on 26 July to collect blood from an unconscious lorry driver injured in a head-on collision with a suspect fleeing police in another vehicle.

The patient was not suspected of wrongdoing.

But Mr Payne did not present a warrant to collect the blood sample, as required by hospital policy, and state and federal law.

Ms Wubbels, who was duty nurse that day, declined to tell Officer Payne where the patient was or let him draw blood.

She even called her supervisor to get her to explain to the detective that the nurse was only following hospital policy.

Lt Tracy instructed Det Payne to arrest Ms Wubbels and he proceeded to shove the screaming nurse out of the emergency room before holding her against a wall to handcuff her.

Ms Wubbels told reporters at a news conference in September: "The only job I have as a nurse is to keep my patients safe.

"Blood is your blood. That's your property."

The University of Utah said it had introduced a new policy on blood samples barring officers from coming to the hospital in person to seek them.