Embodiments of a patient transport platform employing one or more adjustable columns interposed between a base having caster wheels with one or more intermediate large wheels, the adjustable columns accommodating deployment and retraction of the large wheels and elevation and positioning of an articulating patient stretcher chair. In various embodiments, the adjustable columns are in parallel or series connection, or combinations thereof. An articulating base frame assembly with a dampened interconnection between fore and aft sections, having three pairs of wheels for selective implementation in use is also presented.
