Editing Liver

{{infobox main|
| name = Liver
| image = Health item natural.png|Liver
| type = Medical Items
| type2 = Body Parts
| description = A biological human liver. Plays an important role in metabolism.
| mass base = 2
| hp = 50
| flammability = 1.0
| marketvalue  = 1200
| thingCategories = BodyPartsNatural
}}

The liver regulates most chemical levels in the blood and excretes a product called bile. This helps carry away waste products from the liver. All the blood leaving the stomach and intestines passes through the liver. Destruction of the liver is instantly fatal.

==Acquisition==
{{see also|Human resources#Organ harvesting{{!}}Human resources}}
Liver items are harvested from live [[human]]s through [[surgery]]. It must be perfectly healthy in order to obtain the item. This bill requires 1 of any type of medicine to perform. [[Doctoring#Success_chance|Success chance]] is dependent on a number of factors, including bed [[quality]], [[Room stats|room cleanliness]], and doctor skill - specifically the doctor's [[Medical Surgery Success Chance]]. Removing the liver will kill the pawn.

Removing the liver from a guest or prisoner will decrease faction [[goodwill]] by 160 points, to a cap of -100; -80 for the surgery, and -80 for murder. Other colony members can get potentially tremendous [[mood]] penalties, which all stack:
: {{--|5}} for "Someone's organ harvested" (any organ); {{--|6}} if colonist
: {{--|6}} for "Someone organ-murdered"
: {{--|5}} for "Witnessed ally's death" (on colonist)
: {{--|4}} for "Observed corpse"
Pawns with the [[Bloodlust]] or [[Psychopath]] traits, or those with an [[Ideoligion]] with [[Ideoligion#Organ use|Organ Use: Acceptable]]{{IdeologyIcon}} are not affected by the harvesting of other people. Other Ideologion precepts may change moodlets for harvest and organ use.

Livers can also be acquired through [[trading]] with faction settlements or Exotic Goods traders.

== Summary ==
Livers are a vital part for humans. Livers account for 100% of [[Blood Filtration]] and 50% of [[Metabolism]]. 

Blood Filtration has a 0.1x effect on [[Consciousness]], so losing 90% of the liver means -9% Consciousness, which affects a wide variety of stats. It also has a 0.5x effect on [[Immunity Gain Speed]], so a damaged liver will make [[disease]]s much more deadly. Finally, damage to Metabolism reduces the [[Rest Rate Multiplier]], which makes a pawn sleep for longer periods to become fully rested.

===Installation===
Installing the part requires {{ticks|2500}} of work, ?x medicine of ?? quality or better, and a [[Skills#Medical|Medical skill]] of 5.

Removing the part requires {{ticks|2000}} of work, 1x medicine of [[Herbal medicine|herbal]] quality or better, and has no [[Skills#Medical|Medical skill]] requirements.

If the operation fails, the part has a chance{{Check Tag|What Chance?}} to be destroyed.

==Analysis==
Harvesting from a guest will inflict massive [[goodwill]] penalties, and harvesting from a colonist will bring even more [[mood]] penalties, so simply steal organs from a prisoner. If you want a colonist dead, it's best to imprison them first.

Total destruction of the liver is instantly fatal, while Consciousness and Immunity Gain Speed are important stats. Thus, you should replace damaged livers on valuable colonists as soon as possible. It must be noted that the Liver is the only organ that has no current bionic replacement. 

===Trade===
Livers are worth {{icon Small|silver||{{Q|Liver|Market Value Base}}}}, worth exactly the same as a [[heart]]. However, the heart can be replaced by the cheaper [[prosthetic heart]]; by installing the prosthetic, you can obtain both the heart and the liver.

A completely removed heart/liver will kill a pawn. Therefore, it's best to harvest a [[kidney]] and a [[lung]] before taking the liver. This is worth {{icon Small|silver||{{Q|Lung|Market Value Base}}}} + {{icon Small|silver||{{Q|Kidney|Market Value Base}}}} + {{icon Small|silver||{{Q|Liver|Market Value Base}}}} = {{icon Small|silver||{{#expr: {{Q|Lung|Market Value Base #}} + {{Q|Kidney|Market Value Base #}} + {{Q|Liver|Market Value Base #}}}}}}, before accounting for [[Trade Price Improvement|Market Price]] or the prosthetic heart. This comes at the usual mood penalties, unless you have a colony filled with [[Psychopath]]s or a favorable [[Ideoligion]]{{IdeologyIcon}}. A Royal Tribute Collector{{RoyaltyIcon}} will ignore lost organs for sold prisoners, as long as they can walk.

== Version history ==
* [[Version/0.7.581|0.7.581]] - Item form added, and now harvestable.
* ? (Possibly 1.4) - Market value increased from {{Icon small|silver||500}} [[silver]] to {{Icon small|silver||1200}} [[silver]]. 

{{nav|body parts|wide}}
[[Category:Medical Item]] [[Category:Body Part]] [[Category:Organ]]