Final Urinary/water intake/output Flashcards
Nephron
urine making unit of the kidney
Glomerulus
acts as strainer, lets water, sodium, chloride pass through to Bowmman’s Capsule, while RBCs and proteins stay in capillary
Glomerulus->
bowmans capsule->proximal convoluted tubule->descending/ascending loop of henle-> distal convoluted tubule->collecting duct->
Flow of fluid out efferent arteriole
efferent arteriole-> peritubular capillaries-> venules-> renal vein-> heart
Water balance- input has to equal
output; 2500 ml/day
Fluid intake from
60% fluid/drink, 30% food, 10% water from metabolism (breakdown of glucose=water&glucose)
Fluid excreted by
kidneys/urine (primary regulator adh [in] aldosterone [out], skin/lungs 28%, feces/sweat 12%
when water is low, ____ is secreted
ADH to conserve water by reabsorbing water from collecting duct
Sodium
chief extracellular cation 90% of cations in extracellular fluid
Hyper/hypo natremic
too much/little sodium in the blood-controlled by aldosterone secreted by adrenal cortex
Hypernatremic
lose water, not sodium high concentration of Na; diuretics- lose water through urine; diabetes- lose glucose in urine that takes water with it
Hyponatremic
^water intake vNa concentration
Potassium
chief intracellular cation; regulated by aldosterone- stimulates distal tubule of kidney to excrete potassium into urine
Hyperkalemic
malfunctioning kidneys unable to excrete K; excess Potassium in the blood
Hypokalemic
Prolonged use of Diuretics=loss of potassium; caused by vomiting/diarrhea