Renal Disease and Its Investigation Flashcards
The Urinary system consists of (4)
Bladder
Urethra
Kidneys
Excretory duct system
Upper urinary tract consists of:
Lower urinary tract consists of:
Kidneys
Ureters, Urethra, Bladder
Kidney functions (4)
Excretion of nitrogenous waste products Reabsorption of important molecules Maintenance of water, electrolyte and pH balance Hormone production (renin, erythroproietin)
Functional unit of the kidney is the..
Each kidney contains how many of these
Nephron
1 million
Function and major components of nephrons: Renal Corpuscle Tubular system Coleciting duct Vasculature
Filtration
Reabsoprtion & secretion
Reabsorption of water under ADH control
oxygenates tubules, reuptake of glucose
4 main components of glomerulus and function
endothelial cells line capillaries
Glomerular basement membrane performs filtration
podocytes are specialised epithelial cells
mesangium: Supporting cells and matrix
Patterns of renal Disease: Global: Segmental: Diffuse: Focal:
Affects whole of glomerulus uniformly
Affecting one glomerular segment, leaving others unaffected
Affecting all glomeruli in both kidneys
Affecting a portion of glomeruli, leaving others unaffected.
Glomerulonephritis
Inflammation of the glomerulus
Haematuria
Blood in the urine
Hypoabluminaemia
abnormally low levels of albumin in blood
Oliguria
Low levels of urine output 300-500ml per day
Uraemia
High levels of nitrogenous compounds in urine
Nephrotic syndrome
Nephritic syndrome
signs associated with inflammation in kidney
nonspecific disorder where kidneys are damaged
Acute renal failure properties (5)
nephrons tend to cease working suddenly oliguria, anuria, acidosis, uraemia caused mainly by glomeruloneprhitis often reversible if damaging stimulus removed necrosis precludes regeneration
Chronic renal failure properties: (4) potential causes (3)
progressive nephron destruction over time
progressive loss of renal function
less metabolic disturbance than with total renal failure
uraemia, polyuria, biochemical changes
vascular disease
diabetes
glomeruloneprhitis