Flashcards in Urinary Tract Obstruction Deck (12):
3 most common places for obstruction
utereopelvic junction, illiac vessel crossing, bladder entry
What are the 2 ways the bladder can obe obstructed
mechanical (stone, stricture, tumor) or junctions (nephrogenic)
What factors determine the symptoms seen in urinary tract obstruction? (4)
time course, degree of obstruction, level of obstruction, development of 2ndary complications
Anuria is specific fo
What does abnormal renal function + widely fluctuating UOP suggest?
bilateral partial obstruction
T or F: polyuria excludes obstruction
What is the first test for UTO?
catheterize--> if you put in a catheter and pee comes out, then they were obstructed below the bladder neck
After you put in a catheter and there is still no pee what do you do?
ultrasound--> CT (if necessary)
What are the hemodynamic effects with acute and chronic UTOs?
Acute: inc RBF with dec GFR and vasodilation
chronic: dec RBF, big dec GFR, vasoconstriction, rennin-also produced
What are the differences in tubule effects between acute and chronic UTO?
acute: inc tubule pressure --> inc reabs of Na, urea, and H2O
chronic: loss of concentration ability, decreased transport functions
*basically, acute is still trying to work and chronic gave up a long time ago
WIll chronic or acute UTO reposnd to AVP?