Urinary Obstruction Flashcards Preview

Y4 Nephrology/Urology > Urinary Obstruction > Flashcards

Flashcards in Urinary Obstruction Deck (17)
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1

where are three locations where obstruction can occur to cause urinary tract obstruction ?

luminal
mural
extramural

2

state some mural causes of obstruction?

stricture (congenital/acquired)
tumour
neuromuscular dysfunction

3

state some extramural causes of obstruction?

prostatic enlargement
tumour
retroperitoneal fibrosis

4

state some symptoms of chronic urinary obstruction ?

flank pain
renal failure (hydronephrosis)
voiding symptoms - frequency, dribbling, poor stream, hesitancy, overflow incontinence

5

what could be assessed on a patient with urinary obstruction ?

mass in loin
palpable distended bladder
large prostate on PR exam

6

waht imaging could be done for obstruction?

US - hydronephrosis
CT/MRI
radionucleotide imaging - for renal function
retrograde/ anterograde ureterogram

7

what are three management options for urinary obstruction?

nephrostomy
ureteric stent
urethral catheter

8

state some complications of ueteric stents?

Infection
 Haematuria
 Trigonal irritation
 Encrustation

9

state some causes of urethral strictures?

Trauma
 Instrumentation
 Pelvic #s
 Infection: e.g. gonorrhoea
 Chemotherapy
 Balantitis xerotica obliterans

10

what infection can cause narrowing of the urethral

gonorrhoea

11

what is Balantitis xerotica obliterans

chronic, progressive, sclerosing inflammatory dermatosis of unclear etiology.

12

state some voiding symptoms ?

terminal dribbling
poor stream
hesitancy
strangury
pis en deux

13

what is pis en deux?

a desire to pass urine shortly after finishing voiding

14

what three things should be examined for urethral stricture?

prostate
feel urethra through penis
examine meatus

15

what three investigations should be done for urethral stenosis?

Urodynamics
 ↓ peak flow rate
 ↑ micturition time
 Urethroscopy and cystoscopy
 Retrograde urethrogram

16

what is post obstructive diuresis?

 Kidneys produce a lot of urine in the acute phase
after relief of obstruction.
 Must keep up c¯ losses to avoid dehydration.

17

state some complications of obstructive uropathy ?

hyperkalaemia
metabolic acidosis
post obstructive diuresis
infection
hyponatreamia due to diuresis post obstruction