Editing Kidney

{{Stub}}{{infobox main|
| name = Kidney
| image = Health item natural.png|Kidney
| type = Medical Items
| type2 = Body Parts
| description = Filters and removes waste products from the blood.
| mass base = 1
| hp = 50
| flammability = 1.0
| marketvalue  = 250
}}
The kidneys are two bean-shaped organs found on the left and right sides of the body. They filter the blood in order to make urine, to release and retain water, and to remove waste and nitrogen (the excretory system). Each kidney accounts for 50% of a person's [[blood filtration]]. It is possible to survive with only one. Carcinoma, one form of tumor cancer, weakens blood filtration.

==Acquisition==
{{see also|Human Resources}}
While most [[animals]] have kidneys, the kidney item can only be acquired by harvesting them from [[human]] [[pawns]] through the [[surgery]] bill. This bill requires ? 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]]. 

Up to two kidneys can be taken from a healthy patient but any damage, infection, carcinoma or other issue affecting a kidney will prevent harvesting. If both kidneys are taken, the patient will die. 

Removing a kidney from a guest or prisoner decreases [[faction]] goodwill by 20 points down to a max of -100, and creates a -5 [[mood]] to your pawns for 8 days due to "someone's organ harvested", stacking up to 5 times, with a 0.75x multipler. Surgery on your own people gives "colonist's organ harvested" which is statisically identical to the previous mood penalty, however both types of mood penalties stack. The original owner of the organ receives a -30 mood penalty for 8 days. Lastly if the pawn is killed by taking the organ, the members of the colony gets an additional a -6 for 5 days. 

Pawns with the Bloodlust and Psychopath [[trait]] are not affected by the harvesting of other people.  

==Analysis==
While kidneys can be harvested from prisoners, guests and your own colonists, generally it is preferable to harvest from prisoners that you don't intend to recruit or sell into slavery. Their faction is generally already hostile, their mood is not as important as a colonists and the significant loss in [[Blood Filtration]] is less important.

There are two primary reasons to harvest an organ - trade and transplantation.

===Transplantation===
Kidneys can be damaged by disease, drugs, or combat. The damage to a single kidney reduces Blood Filtration by up to 50%. This has two primary effects - the first is a 5% reduction in [[Consciousness]] which in turn affects almost every task a pawn can perform - making them slightly worse in basically every way.
The second, perhaps more urgent, effect is a 25% reduction in [[Immunity Gain Speed]]. This significantly reduces the survivability of infections and common diseases such as the [[Flu]]. If a pawn has an immunity gain speed of 58% or lower, such as from two damaged kidneys, or a damaged kidney and [[Liver]], then the flu will be invariably fatal. 
Lastly, while unlikely, if the remaining kidney is destroyed the pawn will instantly die. 
Thus, it is recommended to replace damaged, destroyed or missing colonist kidneys as soon as possible.

===Trade===
?




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