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Cryonics: Difference between revisions
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[[File:FUD - CryoInject.jpg|thumb|250px|The injection of cytoprethaline.]] | [[File:FUD - CryoInject.jpg|thumb|250px|The injection of cytoprethaline.]] | ||
{{Quote|You breathe in, the chill spreads through your chest. And the surfactant, you can feel it filling your lungs. By the time you realize your eyes are closed, they are already too heavy to open.|[[Dimah Tchakova]]}} | {{Quote|You breathe in, the chill spreads through your chest. And the surfactant, you can feel it filling your lungs. By the time you realize your eyes are closed, they are already too heavy to open.|[[Dimah Tchakova]]}} | ||
Individuals enter cryonic suspension without any clothing. This is because clothing tends to bond to the skin at extremely low temperatures.<ref name="encyc1"/> Individuals who disregard this and enter cryo-sleep with clothing or bandages will often awake to find their skin blistered and raw.<ref>'''Halo: The Flood''', ''page 20''</ref> However, dedicated form-fitting full-body suits specifically designed for use in cryo can be worn without the ill effects of normal clothing, though the use of such suits is not very widespread within the UNSC military.<ref>'''Halo 4: Forward Unto Dawn'''</ref> | Individuals enter cryonic suspension without any clothing. This is because clothing tends to bond to the skin at extremely low temperatures.<ref name="encyc1"/> Individuals who disregard this and enter cryo-sleep with clothing or bandages will often awake to find their skin blistered and raw.<ref>'''Halo: The Flood''', ''page 20''</ref> However, dedicated form-fitting full-body suits specifically designed for use in cryo can be worn without the ill effects of normal clothing, though the use of such suits is not very widespread within the UNSC military.<ref>'''Halo 4: Forward Unto Dawn'''</ref> [[Spartan]]s are also able to enter cryo with their [[Mjolnir armor]] on.<ref name="halolevel">'''Halo 3''', campaign level ''[[Halo (Halo 3 level)]]''</ref><ref>'''Halo 4''', campaign level ''[[Dawn (level)|Dawn]]''</ref> | ||
The "put-down" cycle takes [[seven]] minutes.<ref name="encyc1"/> During the first four minutes anesthetic gas causes the subject to become drowsy. Then another gas reacts to form a [[bronchial surfactant]] when inhaled, coating the passages of the lungs to help ensure a smooth wake cycle. | The "put-down" cycle takes [[seven]] minutes.<ref name="encyc1"/> During the first four minutes anesthetic gas causes the subject to become drowsy. Then another gas reacts to form a [[bronchial surfactant]] when inhaled, coating the passages of the lungs to help ensure a smooth wake cycle. | ||
[[Cytoprethaline]], a drug used by the UNSC during cryo-sleep, prevents damage to the occupants' cell membranes caused by ice crystal formation. It is recommended that a doctor administer the drug, but most of the time the shot is administered by a medic or by a pre-measured self-injector.<ref name="encyc1"/> Some humans, such as [[Thomas Lasky]], exhibit a rare allergic reaction to cytoprethaline. Due to the frequent use of cryosleep in the UNSC during interstellar voyages, severe instances of such condition are grounds for a medical discharge from UNSC service.<ref>[https://www.halowaypoint.com/en-us/universe/tech/cytoprethaline '''Halo Waypoint''': ''Cytoprethaline'']</ref> Spartan-IIs generally entered cryosleep without receiving cytoprethaline, but due to their augmentations, the Spartans likely did not need to receive such medication.<ref | [[Cytoprethaline]], a drug used by the UNSC during cryo-sleep, prevents damage to the occupants' cell membranes caused by ice crystal formation. It is recommended that a doctor administer the drug, but most of the time the shot is administered by a medic or by a pre-measured self-injector.<ref name="encyc1"/> Some humans, such as [[Thomas Lasky]], exhibit a rare allergic reaction to cytoprethaline. Due to the frequent use of cryosleep in the UNSC during interstellar voyages, severe instances of such condition are grounds for a medical discharge from UNSC service.<ref>[https://www.halowaypoint.com/en-us/universe/tech/cytoprethaline '''Halo Waypoint''': ''Cytoprethaline'']</ref> Spartan-IIs generally entered cryosleep without receiving cytoprethaline, but due to their augmentations, the Spartans likely did not need to receive such medication.<ref name="halolevel"/> | ||
Once the subject is prepped, the chamber automatically proceeds to the freezing stage. The unit begins to rapidly cool the body and administers an electric current that precisely counters the normal wave across the heart muscle, stopping its rhythm. The unit reaches the optimal storage temperature in three minutes.<ref name="encyc1"/> | Once the subject is prepped, the chamber automatically proceeds to the freezing stage. The unit begins to rapidly cool the body and administers an electric current that precisely counters the normal wave across the heart muscle, stopping its rhythm. The unit reaches the optimal storage temperature in three minutes.<ref name="encyc1"/> | ||