Renal System Study Guide Essay

711 Words Dec 7th, 2012 3 Pages
Renal System Study Guide
Med/Surg I
Major Functions of Kidney:
Regulation of Homeostasis
-Filters blood & regulates contents (water content & blood volume)
-Maintain acid-base balance
-Control fluid & electrolytes
-Excrete metabolic waste products
-Control BP (renin-angiotensin-aldosterone)

Urinary System Structure:
Kidneys (produce urine), Ureters (transport urine to bladder), Bladder (stores urine), Urethra (conduct urine outside body)

*Nephron- working unit of kidney
*Kidneys receive 25% of cardiac output= approx. 1 Liter
*GRF= 125ml/min & increases at night

Renal Hormones:
ADH- works in DISTAL CONVOLUTED TUBULE
Aldosterone- made in ADRENAL CORTEX
ANP- inhibits secretion of renin-angiotensin-aldosterone & water
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inflammation of glomeruli
Causes: Strep infection, impetigo
S/S: edema, azotemia, hematuria, oliguria, fatigue, HTN, na &h2o retention
DX: elevated ASO (antistreptolysin-O titer), elevated electrolyte, BUN,& Creatnine, KUB-bil kidney enlargement
TX: relief of symptoms, bedrest, fluid & sodium restrictions, abx, daily BUN & creatnine, diet- high calories, low protein sodium potassium & fluids.
Acute Pyelonephritis
-sudden bacterial inflammation of kidney risk factors: urinary stasis, inablility to empty bladder (BPH/enlarged prostate), obstruction, sex, pregnancy, DM
S/S: urinary freq. & urgency, dysuria,

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