1,086 bytes added
, 11:21, 10 June 2010
*Turbid - red
*Specific gravity 1.025 - 1.040
*Total protein > 30g/L
*Nucleated cells 1.5 - 10 x 10e9/L
*WBC from peripheral blood (including [[Neutrophils - WikiBlood|neutrophils]] and [[Macrophages - WikiBlood|macrophages]])
*Recent or iatrogenic
**Erythrocytes
**Platelet clumps
*Long standing haemorrage
**Macrophages with erythrophagia of haeme pigment
*''In horses'' in addition to the above
**Haemorrhagic diapedesis
***Leakage of blood and fluid from the gut secondary to compromised vascular supply and venous return
***Seen with interstitial necrosis/ischaemia
***Fluid appears serosanguinous
'''Due to'''
*Most commonly seen in cats and dogs due to traumatic injury to the [[Liver - Anatomy & Physiology|liver]] (e.g. [[Infectious Canine Hepatitis|infectious canine hepatitis]]), spleen (e.g. '''haemangiosarcoma''') and kidney
*Warfarin toxicity
*Moldy sweet clover hay fed to pregnant cows may bleed from umbilical vessels into [[Peritoneal cavity - Anatomy & Physiology|peritoneum]]
*Manual ablation of [[Corpus Luteum|corpus luteum]] in cattle
[[Category:Effusions]]