Urinary Tract Obstruction

Question 1

3 most common places for obstruction

Answer 1

utereopelvic junction, illiac vessel crossing, bladder entry

Question 2

What are the 2 ways the bladder can obe obstructed

Answer 2

mechanical (stone, stricture, tumor) or junctions (nephrogenic)

Question 3

What factors determine the symptoms seen in urinary tract obstruction? (4)

Answer 3

time course, degree of obstruction, level of obstruction, development of 2ndary complications

Question 4

Anuria is specific fo

Answer 4

bilateral UTO
shock
HUS

Question 5

What does abnormal renal function + widely fluctuating UOP suggest?

Answer 5

bilateral partial obstruction

Question 6

T or F: polyuria excludes obstruction

Answer 6

Flase

Question 7

What is the first test for UTO?

Answer 7

catheterize–> if you put in a catheter and pee comes out, then they were obstructed below the bladder neck

Question 8

After you put in a catheter and there is still no pee what do you do?

Answer 8

ultrasound–> CT (if necessary)

Question 9

What are the hemodynamic effects with acute and chronic UTOs?

Answer 9

Acute: inc RBF with dec GFR and vasodilation

chronic: dec RBF, big dec GFR, vasoconstriction, rennin-also produced

Question 10

What are the differences in tubule effects between acute and chronic UTO?

Answer 10

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

Question 11

WIll chronic or acute UTO reposnd to AVP?

Answer 11

acute

Question 12

Will acute or chronic be hyperkalemic and hyperchloremic acidotic?

Answer 12

chronic