accompanies chronic renal failure secondary to:
A. blood loss via the urine
B. renal insensitivity to vitamin A (retinol)
C. inadequate production of erythropoietin
D. inadequate retention of serum iron
C. inadequate production of erythropoietin
The kidney is sensitive to oxygen saturation, and secretes erythropoietin as needed to signal the bone marrow
to make more RBC's. When the kidneys fail, erythropoietin reduces and eventually stops being produced,
causing anemia.
,Functions of kidney include:
A. formation of urine
B. regulation of body water and electrolytes
C. acid-base balance
D. all of the above
D. all of the above
the kidney regulates many hormonal and electrolyte functions. the major functions are: formation of urine,
regulation of body water and electrolytes, acid-base balabce, production of erythropoietin, and production
of renin
Renal regulation of homeostasis includes:
A. excretion of metabolic waste
B. promotion of perfusion
C. secretion of anti-diuretic hormone
D. absorption of vancomycin
A. excretion of metabolic waste
one of the major functions of the kidney is to remove waste products. perfusion is supported by cardiac
function and volume status, secretion of ADH is from the pituitary, and absorption of vancomycin occurs at the
tissue level- vancomycin is cleared via the kidney.
,The three processes of urine formation include:
A. glomerular filtration, tubular filtration, and tubular secretion
B. glomerular filteration, tubular reabsorption, and tubular secretion.
C. glomerular filtration, water reabsorption, excretion of sodium
D. glomerular filtration, water secretion,and sodium secretion.
The formation of the urine begins with glomerular filtration- then the tubules reabsorb or secrete electrolytes
and particles.
NB: the tubules do not filtrate; sodium is regulated by multiple processes and is not a major process of the
kidney funtion. water reabsorption is a function of tubular reabsorption or secretion.
, The glomerular filtration rate (GFR):
A. equals about 180 L/day
B. equals about 125 mL/ minute
C. Is often calculated by pharmacy and intensivists for drug administration
D. All of the above
D. All of the above
GFR, a good indication of renal function, equals about 180 L/day or about 125 mL/min, and is a calculated
number by critical care specialists to dose drugs. GFR is excellent measure of current renal function.
Renal assessment includes:
A. Glomerular filtration rate (GFR)
B. Creatinine
C. Urine output for 24 hours
D. All of the above
D. All of the above
The best measure of current renal function is to measure 24-hour-urine formation, GFR, and creatinine. These
three focus on the kidney's abililty to filter, absorb and secret. This information is found in the RIFLE study.