She was also found guilty of forging another registered nurse's signature to countersign the administration of intravenous antibiotics in relation to caring for a baby girl with bronchopneumonia. She also lied about observing the girl and administering the medications.
The nurse denied all the allegations saying she was "honest".
She told the tribunal she had carried out the observations and administered the medications as required, arguing that over the years she had developed the ability to expertly complete patient observations and administer medications while both the patient and their parents stayed asleep.
The nurse told the tribunal she believed the allegations were made because the staff didn't like her and it had been an abusive environment.
However, the tribunal believed the staff and parents of the young patients to be credible witnesses, whereas it was "unconvinced" by the nurse's evidence.
The tribunal ruled that the four charges that were upheld involved "significant findings of failure to administer care and carry out observations on young and vulnerable patients" over three different shifts.
"This was not a one-off or momentary lapse of judgment," the tribunal decision said.
The tribunal was also "highly concerned" about the disrespect and disdain shown by the nurse about former colleagues and the parents of the patients.
It also did not believe she had gained significant insight or show remorse for her conduct.
Since leaving the Auckland District Health Board, the nurse had been working at an aged care facility for three years with no further complaints about her work.
The tribunal cancelled her nursing registration and she is not permitted to apply for reregistration for three years to reflect the seriousness of her misconduct.
The nurse was granted permanent name suppression and ordered to pay 40 per cent or $86,510 of the tribunal's total costs of $270,345.