Lower urinary tract catheterization Flashcards
The male urethra is about___ cm long. The anterior urethra, which is surrounded by the ____, is approximately___ and lies within the penis distally and the perineum proximally. The anterior urethra can be further subdivided into the ____; the ___, which is surrounded by the ___ ; and the ___. The posterior urethra is ___ long and lies within the pelvis proximal to the ____. It can be further subdivided into the ___, __, and ___
The male urethra is about 18 to 20 cm long. The anterior urethra, which is surrounded by the corpus spongiosum, is approximately 16 cm and lies within the penis distally and the perineum proximally. The anterior urethra can be further subdivided into the pendulous or penile urethra; the bulbar urethra, which is surrounded by the bulbospongiosus muscle; and the fossa navicularis. The posterior urethra is 4 cm long and lies within the pelvis proximal to the corpus spongiosum. It can be further subdivided into the preprostatic or bladder neck, prostatic, and membranous urethra
The only absolute contraindication to urethral catheterization is a ___ or a history of ___
The only absolute contraindication to urethral catheterization is a suspected or confirmed urethral injury or a history of bladder neck closure or repair.
If BPH is suspected, ideally the clinician should use at least an ___
If BPH is suspected, ideally the clinician should use at least an 18-Fr catheter with a coudé tip.
Newborn males born with ___ may require urgent catheterization. A blunt-tip __ catheter can be placed in ice and then shaped with an anterior curve to allow the catheter to pass anterior to the valves.
Newborn males born with posterior urethral valves may require urgent catheterization. A blunt-tip 5-Fr catheter can be placed in ice and then shaped with an anterior curve to allow the catheter to pass anterior to the valves.
The clinician should obtain a thorough history and all prior operative records before instrumentation. If a ___ has been performed, obviously urethral catheterization should be avoided
The clinician should obtain a thorough history and all prior operative records before instrumentation. If a bladder neck closure has been performed, obviously urethral catheterization should be avoided
A 16-Fr catheter is approximately ____ cm in outer diameter.
a. 16
b. 10.4
c. 8.7
d. 5.3
d. 5.3. To calculate French size approximately, divide by 3
The most common cause of inability to catheterize an Indiana pouch is \_\_\_\_\_. a. perforation b. catheter malfunction c. overdistension d. none of the above
Overdistension. Overdistension is the most common reason for
catheterization difficulty. If the catheter is forced, a perforation in
the channel will be likely. A 21-gauge needle can be placed into the
reservoir. After drainage, a catheter will usually pass without
difficulty
A urostomy should never be catheterized.
a. T
b. F
. b. F. Catheterizing a urostomy gently can be performed without
risk. Occasionally, catheterizing the stoma may be therapeutic in
cases such as stomal stenosis or parastomal hernia
Catheter-associated urinary tract infection is the most common type
of health care–associated infection
a. T
b. F
a. T. Unfortunately, this is true based on a Centers for Disease
Control and Prevention report. Decreasing catheter use should
decrease the hospital-acquired infection rates
The incidence of bladder cancer in spinal cord patients with chronic catheters is \_\_\_\_\_\_\_. a. 1% b. 2% c. 3% d. 4% e. 6%
a. 1%. There are retrospective studies that do show what appears to
be an increased risk of bladder cancer. Some recommend
surveillance after 8 years of chronic catheterization.
