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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 indluce the _____.
diaphragm; inferior bladder
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What organ of the body plays an essential role in maintaining the acid-base balance of the blood and body fluids and also the electolyte balance?
Kidney
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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:
hydronephrosis
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What is the name for the most common abdominal neoplasm of infants and children?
Wilms' Tumor
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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 dilation of the distal ureter near the bladder?
Ureterocele
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Name the first portion of the kidney to become visible after injection of contrast.
Nephron
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What term is used to describe a kidney not in the normal area of the abdomen?
Ectopic
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The medical term for painful urination is:
dysuria
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Functional unit of the kidney:
nephron
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In an average person, the nephron filters about ____ of water out of glomerular blood each day.
190 L
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More than ____ of the water filtered by the nephrons is reabsorbed.
99%
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The formation of urine begins in the:
glomerulus
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ADH is secreted by the ____ and aldosterone is secreted by the ____.
posterior pituitary gland; adrenal glands
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The amount of sodium and chloride reabsorbed in the proximal convoluted tubules is determined by:
concentration of these substances in the body.
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To maintain a healthy metabolism, the pH must be between:
7.35 and 7.45
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Why is renal failure often associated with severe anemia?
Because the kidneys produce erythropoitin which stimulates the rate of the production of red blood cells.
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Unilateral renal agenesis results from a failure of the:
embryonic renal bud or renal vascular system to form
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In true renal agenesis, the ___ and ____ are missing also.
ureter and corresponding half of the trigone
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A solitary kidney tends to be ____ reflecting _____.
larger; compensatory hypertrophy
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Although supernumerary kidneys function normally, they tend to lead to:
secondary infections
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What makes a horseshoe kidney more prone to infection?
the large pelvis
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Ectopic ureteroceles are found most often in:
infants and children
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Thin, transverse membranes, found almost exclusively in males, that cause bladder outlet obstruction and may lead to severe hydronephrosis, hydroureter, and renal damage:
posterior urethral valves
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Nonsuppurative inflammatory process infolving the tufts of capillaries that filter the blood within a kidney; most commonly occurs several weeks after acute respiratory or middle ear infection:
glomerulonephritis
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Supperative inflammation of the kidney and renal pelvis caused by pyogenic bacteria; primarily involves interstitial tissue between tubules:
Pyelonephritis
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Pyelonephritis usually originates in the ____.
Bladder
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Pyelonephritis often occurs in ____ and in patients with _____.
women and children; obstruction of urinary tract
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Signs and sypmtoms of pyelonephritis:
high fever, chills, back pain that spreads to abdomen, painful urination, pus and bacteria in urine.
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Severe form of acute parenchymal and perirenal infection with gas forming bacteria that occurs virtually only in diabetic patients and causess an acute necrosis of the entire kidney:
emphysematous pyelonephritis
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What modality is preferred to localize gas patterns within and around the kidneys?
CT
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How long after primary infection does renal tuberculosis manifest itself?
5-10 years
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A destructive process involving a varying amount of the medullary papillae and the terminal portion of the renal pyramids:
papillary necrosis
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Cystitis is most common in women because:
the urethra is shorter
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Inflammation of the urinary bladder:
cystitis
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Urinary calculi most commonly form in the:
kidney
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When a renal stone completely fills the renal pelvis, this is called:
staghorn calculus
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Stone formation in the bladder is a disorder primarily affecting:
older men with obstruction or infection of the lower urinary tract
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Lithotripsy works well for stones in the:
kidney or upper ureter
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Stones in the lower ureter or pelvis are best relived by:
cystoscopic retrieval or laser destruction
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Major causes of urinary tract obstruction in adults:
urinary calculi, pelvic tumors, urethral strictures, and enlargement of prostate
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What is usually responsible for urinary tract obstrucion in children?
congenital malformations
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Most common unifocal masses of the kidney:
simple renal cysts
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What is the modality of choice for distinguishing fluid-filled cysts from solid mass lesions?
Ultrasound
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An inherited disorder in which multiple cysts of varying size cause lobulated enlargement of the kidneys and progressive renal impairment:
polycystic renal disease
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Another name for renal cell carcinoma:
hypernephroma
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Most common renal neoplasm:
hypernephroma
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Hypernephroma occurs predominantly in patients who are:
over 40 years old with painless hematuria
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Modality considered the most accurate method for detecting local and regional spread of hypernephroma:
CT
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Are radiation or chemotherapy effective in renal cell carcinoma?
No, nephrectomy is the most common treatment
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Most common abdominal neoplasm of infancy and childhood:
wilms' tumor
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Another name for Wilms' Tumor:
Nephroblastoma
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What treatments result in an 85% cure rate in patients with Wilm's Tumor?
Surgery, radiation therapy, and chemotherapy
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Bladder carcinoma most commonly originates in the _____ and is called _____.
epithelium; urothelial carcinoma
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Bladder carcinoma is usually seen in:
men more than 50 years of age
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Fourth most common cancer in men:
bladder carcinoma
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Urography can detect only 60% of bladder carcinomas because most are ___ when first symptomatic and are located on the ____, where they can be difficult to visualize.
small; trigone
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Renal vein thrombosis occurs most frequently in:
children who are severely dehydrated
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A rapid deterioration in kidney function that is sufficient to result in the accumulation of nitrogen-containing wastes in the blood and the characterisitic odor of amonia on the breath:
Acute renal failure
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Modality of choice in the evaluation of ARF:
ultrasound
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A condition characterized by excessive thirst and excretion of large amounts of severely diluted urine, with reduction of fluid intake having no effect on the latter
Diabetes Insipidus
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A group of metabolic diseases in which a person has high blood sugar, either because the body does not produce enough insulin, or because cells do not respond to the insulin that is produced.
Diabetes Mellitus
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stable concentration in bodily fluids
Acid-Base Balance
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cup-shaped end of renal tubule
Bowman’s Capsule
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funnels urine into the papillary ducts in the renal pelvis
Collecting Tubules
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disk, cake, lump, or doughnut kidney; kidneys fused together
Complete Fusion
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ectopic kidney located on the same side as the normal kidney
Crossed Ectopic
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more than one renal pelvis or ureter
Duplication
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distention of the pelvis and calyces of the kidney
Hydronephrosis
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dilatation of the ureter
Hydroureter
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most common renal cell carcinoma
Hypernephroma
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underdeveloped kidney
Hypoplastic Kidney
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calcium deposists within the substance of the kidney
Nephrocalcinosis
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second part of the nephron, first part of renal tubule
Proximal Convoluted Tubule
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renal calculi filling the entire renal pelvis of the kidney
Staghorn Calculus
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an extra kidney
Supermumerary Kidney
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absence of a kidney
Unilateral Renal Agenesis
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