Health – Not sure where it was stated that the ambulance was on scene prior to the paramedics, nothing that you have quoted seems to create that kind of timeline.
There are some instances in which resuscitation would be initiated on the scene, not just if transport was to be delayed for other reasons such as entrapment, this would be up to the providers to decide, the same is when the patient is presented to the ED, they would decide what if any intervention should be done for this patient before sending this patient to the unit that would care for the patient.
For example, if this were on the fourth floor with no elevator, would it be appropriate to delay transport for just two minutes to obtain access and begin fluid resuscitation if this patient indeed had a systolic pressure of 60? many would make the argument that it would be appropriate.
Once again, there is no indication from this article that transport was delayed at all.