These practices include operator training, emergency procedures, operator maintenance and modification.
Things can go wrong with design, equipment, procedures, operators, supplies and the environment.
Nothing is perfect, neither designs, equipment, procedures, operators, supplies, or the environment.
According to Perrow's theory: Nothing is perfect, neither designs, equipment, procedures, operators, supplies, or the environment.
Additionally, certain types of contact or procedures may contribute to infection, such as nasal intubation or routine dental procedures, where operator risk is increased even in the preclinical stage of infection.
Robert Bari, a physicist at Brookhaven National Laboratory in Upton, New York, noted that plant operators and regulators in the United States and other countries are already taking steps to upgrade plant systems, operating procedures, and operator training in response to the Fukushima disaster.
The reported incidence of ERCP-specific complications ranges from 5 to 40%%, depending on the underlying diagnosis, patient age and comorbidities, complexity of the procedure, and operator experience.
This compares with a value of around 12 mSv on average for conventional abdominal angiography with DSA, although this figure varies between 4 and 48 mSv depending on the difficulty of the procedure and operator expertise [38, 39].
In the manual procedure, the operator labeled each identified spine with a marker labeled 'manual'manual
During the procedure, the operator was not informed of the result of the lactate measurement.
