Attacks on Queensland Ambulance Service officers are on the rise with three Gold Coast paramedics either assaulted or threatened in separate incidents in as many days.

Critical care paramedic Tash Adams said she was threatened with a syringe while treating a man with a leg injury at Labrador last Thursday.

"He was a bit aggressive when the crew first arrived, but he calmed down significantly with treatment," she said.

"En route to hospital however he attacked me."

The man grabbed a syringe from the officer's hand and threatened her with a blunt needle before self-administering medication.

"Luckily I was sitting behind him so I was quickly able to get out of the vehicle," Ms Adams said.

Police were called and the situation was brought under control.

"It was quite a frightening experience," she said.

A day later a female officer was kicked in the stomach while treating a patient at Palm Beach.

Scratch marks left on the arm of a male paramedic by a woman he was treating. ( Supplied: Queensland Ambulance Service )

Then on Saturday a male officer was punched, scratched and spat on while treating a woman at Parkwood.

Gold Coast Assistant Commissioner John Hammond said the incidents were totally unacceptable.

"We have zero tolerance for that type of behaviour against our staff," he said.

"They're out there trying to serve the community and help people."

Since June 2016, there have been 21 officers attacked on the Gold Coast — that is up from the previous 12 months where a total of 18 officers were assaulted.

This year to date, 176 ambulance officers have been assaulted across Queensland.

United Voice delegate Brett Fournier, who represents ambulance workers, said he believed the problem was getting worse.

"It is coming up more and more with people drinking alcohol," he said.

"The youth of today ... not really having the education that we would have had as children. They don't really respect their elders."

Mr Fournier said he wanted mandatory jail sentences for anyone found guilty of assaulting paramedics.

"The current system we feel is ... they are sort of getting away with it.

"We are going to push the judicial system for a firmer stance when they start sentencing patients who assault our paramedics."

Previous assault changes approach to patients

Ms Adams said her approach changed four years ago when she was punched in the face by a man while working at Logan, south of Brisbane.

"That definitely made me change the way I approach patients," she said.

The 10-year veteran said situational awareness and self-defence training helped her in her most recent incident last week.

"It is because of that training that I was situated where I was in the ambulance so I could get a quick escape," Ms Adams said.

Other measures introduced to help protect ambulance officers include the introduction of duress alarms and laws allowing paramedics to chemically sedate agitated and violent patients.