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pylo/neoplasms urina
pylonephritis and neoplasms of kidney
Question | Answer |
---|---|
Blood pressure is determined by | cardiac output (influenced by blood volume) and peripheral resistance of arterioles. |
Peripheral resistance is regulated by | vasoconstrictors and vasodilators. |
This causes the small renal arteries to become thickened and leads to microscopic ischemic changes (arteriolonephrosclerosis) which produces glomerular damage, tubular atrophy, and interstitial fibrosis | BENIGN (ESSENTIAL) HYPERTENSION |
What occurs pathologially with benign htn? | As scar tissue replaces the damaged renal tissue, the surface of the kidney becomes granular and renal function decreases. |
This results from an accelerated progression of previously "benign" hypertension and leads to a rapid increase of blood pressure to extremely high levels. | MALIGNANT HYPERTENSION - |
Clinically, there may be abrupt onset of cardiovascular or CNS symptoms (headache, nausea and vomiting, visual scotomas, etc). | MALIGNANT HYPERTENSION - |
Unless treated, death by cardiovascular disease, stroke, or uremia generally follows within | a year. |
The most frequent form of renal cancer in adults, | RENAL CELL CARCINOMA (RCC) |
When does renalcell carcioma generally occur? | late adult life. |
Whend do client swithrenal cel carcinoma generlly seek medical assistane? | tumor reaches a sufficient size to cause space-occupying problems or it may present as hematuria with or without a palpable mass. |
Renal cel carcinoa may have endocrine-like effects and cause what three symptoms? | polycythemia, hypercalcemia, hypertension |
Grossly, the tumor is usually solitary, bulky, unilateral, and yellow in color with foci of necrosis and hemorrhage | RENAL CELL CARCINOMA (RCC |
rel cell carcinoma like to invade the | renal vein. |
The clinical course of renal cell carinoma is very unpredictable; the tumor can metastasize widely with the most common locations being | lung and bone. |
This is the most common primary renal malignancy of childhood and comprises about 5% of all childhood cancers. | WILMS’ TUMOR - |
clinical manifestations of wilms tumor | They frequently present as abdominal swelling or large unilateral (90%) masses with or without abdominal pain and gross hematuria. |
In most wilm's tumor cases, abnormalities of the short arm of chromosome ___ are present. | 11 |
The most common sites of metastasis with wlms tumor are the | lung and liver. |
(5-10% of adult renal cancer) - This arises from the epithelium which lines the calyces and pelvis of the kidney. | TRANSITIONAL CELL CARCINOMA |
Because of their location, they tend to produce early hematuria and are therefore identified earlier then renal cell carcinomas. | TRANSITIONAL CELL CARCINOMA |
They may be associated with concurrent transitional cell carcinomas elsewhere within the urinary tract and the presence of multicentric lesions suggests this may be the effects of a carcinogen in urine. | TRANSITIONAL CELL CARCINOMA |
type of renal failure, This is most often due to ischemic or toxic damage to renal tubules (acute tubular necrosis). | ACUTE - |
Clinical onset of acute renal failure generally begins _______ after the initiating insult. | 24-36 hours |
Oliguria and decreased blood filtration by the glomeruli, with acute renal failureeee leads to | fluid overload, uremia and electrolyte retention. |
During this phase,clinical symptoms of acute renal failure (which may last up to 3 weeks), patients must be supported by | dialysis. |
can clients with acute renal failure regain normal kidney function? | yes |
When blood filtration is 20-30% of normal, azotemia (increased blood urea nitrogen and creatinine) will develop, frequently accompanied by hypertension. | CHRONIC - |
When filtration is _________of normal, azotemia is complicated by the symptoms of the uremic syndrome. | 15-20% |
this syndrome reflects dysfunction of many organ systems as well as fluid, electrolyte, and acid/base disturbances | uremic syndrome |