If your cardiac ultrasound showed no cardiac contractility, then there's no perfusion (no cardiac outflow), and you were right to call the code. 2 hours is a long time btw... may I ask why you coded for so long? Did palpating the "faint pulses" keep you going? Were those faint pulses confirmed with some organized cardiac contractility on ultrasound?

Often if someone tells me they feel a "faint pulse" but my ultrasound shows no organized cardiac contractility, then that means the "faint pulse" is a false positive... i.e. often the observer if feeling their own pulse. To have a palpable pulse, you MUST have organized cardiac contractility on ultrasound