Typically, the spleen destroys mildly abnormal red blood cells or those coated with IgG-type antibodies, while severely abnormal red blood cells or those coated with IgM-type antibodies are destroyed in the circulation or in the liver.If extravascular hemolysis is extensive, hemosiderin can be deposited in the spleen, bone marrow, kidney, liver, and other organs, resulting in hemosiderosis. Outside the body
In vitro hemolysis can be caused by improper technique during collection of blood specimens, by the effects of mechanical processing of blood, or by bacterial action in cultured blood specimens. From specimen collection
Most causes of in vitro hemolysis are related to specimen collection. Difficult collections, unsecure line connections, contamination, and incorrect needle size, as well as improper tube mixing and incorrectly filled tubes are all frequent causes of hemolysis. Excessive suction can cause the red blood cells to be smashed on their way through the hypodermic needle owing to turbulence and physical forces. Such hemolysis is more likely to occur when a patients veins are difficult to find or when they collapse when blood is removed by a syringe or a modern vacuum tube. Experience and proper technique are key for any phlebotomist, nurse or doctor to prevent hemolysis. In vitro hemolysis during specimen collection can cause inaccurate laboratory test results by contaminating the surrounding plasma with the contents of hemolyzed red blood cells. For example, the concentration of potassium inside red blood cells is much higher than in the plasma and so an elevated potassium level is usually found in biochemistry tests of hemolyzed blood.
Nervous may refer to:

nervousness
Nervous system, a network of cells in an animals body that coordinates movement and the senses
Nervous tissue, the cells of the nervous system that work in aggregate to transmit signals

Music
"Nervous" (Gene Summers song), 1958; covered by several performers
"Nervous" (Gavin James song), 2016
"Nervous" (Shawn Mendes song), 2018
"Nervous", a song by K.Flay from Solutions, 2019
"Nervous", a song by L Devine, 2018
"Nervous", a song by Nick Jonas from Spaceman, 2021
Nervous Records, a UK record label
Nervous Records (US), a US record label

See also
"Nervousness", a song by the Gigolo Aunts from Tales from the Vinegar Side
Nervous Norvus (1912–1968), the performing name of Jimmy Drake
Nervous shark, a species of requiem shark
All pages with titles beginning with Nervous