Embodiments of a height adjustable emergency roll-in cotcomprise a cot support frame comprising having a leading end, a trailingend, and a pair of opposing side frame members disposed between theleading and trailing ends, a pair of wheeled front legs slidingly coupled tothe cot support frame via a slideable front transverse support member, anda pair of wheeled back legs slidingly coupled to the support frame via aslideable back transverse support member, wherein the slideable fronttransverse support member, the slideable back transverse support member,or both include a pair of locking pins (90, 92). The height adjustableemer-gency roll-in cot comprises a long ratchet bar (130) and a short ratchetbar(140) connected and parallel to one another, wherein the short ratchet barand the long ratchet bar define different slot profiles (132, 142) such thatwhen the slots of the long ratchet bar and the slots of the short ratchet barare configured to engage the respective locking pins, the long ratchet barengages its respective locking pin before the short ratchet car.