ch 10 Flashcards
what does serous fluid fill
spaces between organs
what is serous fluid
ultrafiltrate of plasma that serves as lubricant between organ membranes (free movement of organs)
what is fluid formation controlled by
- permeability of capillaries in the parietal membrane
- hydrostatic pressure in the capillaries
- oncotic pressure produced by plasma proteins
- absorption of fluid by lymphatic system
what is hydrostatic pressure
think blood pressure that forces plasma to form in cavity
what is oncotic pressure
plasma proteins that opposes filtration
what regulates rate of ultrafiltrate filtration
permeability of capillary endothelium
what is effusion
accumulation of fluid in a body cavity
what is paracentesis
puncture of body cavity for the aspiration of fluid
what tubes are used for microscopic examination of serous fluid
EDTA or sodium heparin (anticoagulant)
what tubes is used of chemical testing
nonanticoagulant tube
how is serous fluid maintained
at roome temp
characteristics of transudates
increased hydrostatic pressure and decreased oncotic pressure
–> clear
–> pale yellow
–> no clots
–> mononuclear cells
–> equal glucose levels
charasteristics of exudates
increased capillary permeability
decreased lymphatic absorption
–> cloudy
–> yellow, green, pink, red
–> clots
–> nuetrophils
–> decreased glucose levels
what causes transudates
systemic diseases –> typically noninflammatory
associated conditions with transudates
congestive heart failure, hepatic cirrhosis, nephrotic syndrome
what causes exudates
inflammatory processes
associated conditions with exudates
neoplasma, systemic disorders, trauma
are pericardial effusions classified as transudate or exudate
no
chylous effusion
milky fluid with presence of chyle caused by obstruction of or damage to lymphatic system
WBC in transudates vs exudates
exudates generally exceed 1000 while transudates are less than
TP ratio less that 0.5 and LD ration less than 0.6
transudate
TP ration greater than 0.5 and LD greater than 0.6
exudate
