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The main function of the kidney is to filter _______ from the blood and ____ water and nutrients, and _____ excess substances.
waste products, reabsorb, secrete
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The formation of urine begins in the?
glomerulus
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Where is virtually all nutrients reabsorbed into the blood capillaries?
proximal convoluted tubule
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Three major parts of the loop of Henle?
descending limb, loop, ascending limb
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The kidney helps to maintain ____ balance and ______ balance of blood and body fluids.
electrolyte, acid base
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As urine passes from the collecting tubules it enters the?
papillae
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From the major calyces, urine passes into the?
renal pelvis
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To urinate or void is also called?
micturate
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What prevents urine from backflowing into the ureter?
uterovessicle junction
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Involuntary urination is called?
incontenence
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When one kidney must perform the function of both kidneys, it is called?
compensatory hypertropy
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What appears as a round or oval density surrounded by a thin radiolucent halo that represents the wall of a prolapsed ureter (when filled with contrast)?
ureterocele
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The term for more than one ureter or renal pelvis is?
duplication
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Ultrasound demonstrates the lower poles of the kidney fused resulting in a _________.
horseshoe kidney
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Four normal points of narrowing that are common sites of obstruction in the urinary system
uretopelvic junction, uretovessicle junction, bladder neck, urethral meatus
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In chronic ________, the kidneys are bilaterally smaller with normal contours.
glomerulonephritis
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Noncontrast helical CT is the safest method to demonstrate?
kidney stones
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The renal calculus that fills the renal calyces and pelvis is called a ______ calculus.
staghorn
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When blockage in the ureter occurs above the bladder, it may cause a?
hydroureter
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The most common unifocal mass of the kidney is a ?
renal cyst
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The triad of symptoms in renal carcinoma are?
hematuria, flank pain, possible palpable mass
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A multilobulated contour due to multiple cysts in the parenchyma is what disease?
polycystic disease
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A plain radiograph showing punctate, coarse, or linear calcifications, usually on the periphery of the bladder is suggestive of?
carcinoma
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A lack of visualization of the renal vein on CT is indicative of?
renal vein thrombosis
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Area of the kidney that the blood vessels, renal pelvis, and nerves enter and exit the kidney?
hilum
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Muscular structure on the posterior aspect of the bladder?
trigone
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What is the cup-shapped structure on top of a nephron that surrounds the glomerulus?
Bowman's capsule
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Stores urine before entrance into the renal pelvis?
major calyces
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Process of urination?
micturation
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Urine passes into the papillae through this structure?
collecting tubules
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Supernumerary kidney?
a third kidney
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Cystic dilation of the distal ureter?
ureterocele
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Tuft of capillaries with very thin walls and a large surface area?
glomerulus
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Uncontrolled response of voiding?
incontinence
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Dilation of the renal pelvicalyceal area?
hydronephrosis
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Dilation of a ureter?
hydroureter
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Renal agenesis?
solitary kidney
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Fluid-filled unilocular mass?
renal cyst
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Inflammation of the bladder?
cystitis
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Inflammatory process involving the tufts of the capillaries that filter the blood?
glomerulonephritis
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Lesion rising from embryonic renal tissue most commonly found in infants and during childhood?
Wilm's tumor
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Most common renal neoplasm, also known as hypernephroma?
renal carcinoma
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Pyogenic bacteria causing inflammation of the kidney and renal pelvis?
pyelonephritis
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Chronic renal failure results in a condition called ______ which is an accumulation of excessive blood levels of urea and creatine.
uremia
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80% of _______ contain enough calcium to be radiopaque.
urinary calculi
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Destructive process involving the medullary papillae and the terminal renal pyramids?
Papillary necrosis
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Extension of a clot from the IVC?
renal vein thrombosis
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Finger like projections into the lumen of the bladder?
bladder carcinoma
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Lower poles of the left and right kidneys are fused?
horseshoe kidney
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Multiple cysts of varying size causing progressive renal impairment?
polycystic kidney
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What condition results in a condition called uremia?
chronic renal failure
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Thin transverse membrane in the urethra preventing micturation?
posterior urethral valves
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A miniature replica of a normal kidney with good function is a?
hypoplastic kidney
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A kidney that is not located in the retroperitoneal space adjacent to the psoas muscle is considered an?
eptopic kidney
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The modality to demonstrate the fused inferior poles of the kidneys without radiation exposure is?
ultrasound
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The _____ is a thin membrane that prevents normal urine flow.
posterior uretral valve
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A _______ is a lower-pole parenchymal fusion
horseshoe kidney
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A dilation of the ureter ar the ureterovesical junction is a ?
ureterocele
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Small granulomas scattered in the cortices of the kidney occurs in the hematogenous spread of?
tuberculosis
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Gas-forming bacteria on plain images appearing as a lucent ring outlining all or part of the bladder are suggestive of?
emphysematous cystitis
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Hydronephrosis is commonly caused by?
a kidney stone
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The modality of choice to differentiate fluid-filled simple cysts from a solid mass is?
ultrasound
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The Swiss cheese pattern in the kidney is caused by?
innumerable lucent cysts
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Polypoid defects and bladder wall thickening are indicative of?
bladder carcinoma
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A highly malignant renal tumor most common in infancy and childhood is a ?
Wilm's tumor
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The imaging criteria for pyelography are the same as for an abdominal radiograph, but must include the area from the ______ to include the _______.
diaphragm, inferior bladder
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A bacterial inflammation of the kidney and renal pelvis is termed?
pyelonephritis
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The medical term used to describe dilated calyces and renal pelvis is?
hydronephritis
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What is the name of the most common fusion anomaly of the kidneys?
horseshoe kidney
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What is the name for a cystic dilatation of the distal ureter near the bladder?
ureterocele
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Name of the first portion of the kidney to become visible after injection of a contrast agent.
nephron
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What term is used to describe a kidney not in the normal area of the abdomen?
eptopic
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What disorder is caused by an antigen antibody reaction that occurs after a streptococcyl infection of the upper respiratory tract or middle ear?
glomerulonephritis: becomes very permeable allowing albumin and RBCs to leak into urine
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The medical term for painful urination is?
dysuria
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What is suppurative inflammation of the kideny and renal pelvis caused by bacteria from blood, lymph system or most often from stagnating urine due to obstruction?
pyelonephritis: effects interstital tissue between tubules. Usually originates in bladder
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Symptoms of pyelonephritis?
high fever, chills, sudden back pain, dysuria, pyuria
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Emphysematous pyelonephritis?
gas forming bacteria occuring most commonly in diabetic pt's. Causes acute necrosis of entire kidney
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The kidneys sit between?
T12-L3
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The right kidney is _____ and _____ in relationship to the longer left kidney.
lower and more anterior
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Nephrons filter approx _____ liters of water out of glomerular blood each day, while excreting __ liters in urine.
190 liters, excrete 1-2 liters into urine
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The kidney helps maintain _______, controls the concentration and volume of _____, and excretes various amounts of ________.
homeostasis, blood, selected wastes
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Path of blood into kidney to form urine?
renal artery - interlobar artery - arcurate artery - interlobular artery - afferent arterioles - glomerulus
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Blood pressure is higher in the _____ than the _____ which allows water and solutes to be filtered into the ______ in which neither protein or RBCs should pass.
glomerulus, Bowman's capsule, capsule
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Anomalies of size and number?
renal agenesis, supernumerary kidney, hypoplastic kidney, compensatory hypertrophy
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An ectopic kidney developes _______ where as nephroptosis develpoes _______.
out of place (will have smaller ureter), developes in the normal places but then falls out of place (has normal length ureter).
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Anomalies of rotation, position, and fusion?
malrotation, ectopic kideny, horseshoe kidney, crossed kidney, complete fusion.
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In horseshoe kidney the ureters exit _______.
anteriorly over the lower poles
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Anomalies of the renal pelvis, ureter, and urethera?
duplication, ureterocele
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Cystitis is more common in?
women
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Cystitis is caused by?
E. Coli (Escherichia Coli)
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How are kidney stones formed?
Precipitation of urine products (calcium salts) out of urine solution
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_____ % of stones are _______ due to calcium content.
80% radiopaque
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What type of stone is composed of magnesium ammonium phosphate?
staghorn calculus
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PUL (percutanous ultrasonic lithotripsy) is the best treatment for?
staghorn calculi
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Renal cysts are common in the _____ of the kidney.
lower pole
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Modality of choice for renal cyst visualization?
ultrasound
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Pathology? Many tiny cysts at birth gradually enlarge into age 30's, compress and destroy normal tissue with end stage renal disease by age 40. (Transplant canidate)
polycystic kidney disease
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Painless hematuria is a chief complaint of what pathology?
renal cell carcinoma (hypernephroma)
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Common metastasis sites (secondary) by time of diagnosis of hypernephroma?
lungs, liver, bone, brain
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5yr survival rate for PT's with hypernephroma (renal cell carcinoma)?
40%
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Wilm's tumor (nephroblastoma) is clinically apparent between the ages of ____ and ____.
2-4 years old
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5yr survival rate for PT's who have received treatment for Wilm's tumor (nephroblastoma)?
85%
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Second most common cancer of the kidney in children?`
neuroblastoma: most often originates in the adrenal glands which displaces kidney downward.
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Cause of carcinoma of the bladder is related to?
smoking, excessive coffe drinking and industrial chemicals
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Which cancer of the urinary system has the best prognosis?
bladder cancer
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What is ARF?
acute renal failure
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What pathology is the accumulation of notrogen containing wastes in the blood that causes characteristic odor of ammonia on the breath?
ARF, acute renal failure
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Modality of choice for people suspected of renal failure?
ultrasound. You don't push contrast into patients in renal failure unless you want to kill them
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Degree of obliquity for cystography?
waiting for answer
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What is a RUG?
retrograde urethrogram, for males
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Retrograde pyelography. Where is the catheter placed?
directly into the ureters
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Percutaneous pyelography. What is it?
posterolateral insertion of needle or catheter into renal pelvis. Can be left in for drainage.
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Placement of catheter in renal angiography?
inserts into femoral artery, inject into or above renal artery.
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Normal creatine values?
0.7-1.4
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Normal BUN (Blood Urea Nitrogen)
10-22
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A coral looking mass is a?
papillary tumor
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