u r i n a r y c o m p l i c a t i o n s Flashcards
urinary retention risk factors
Age >50yrs
Male gender
Previous retention
Type of surgery = Including pelvic or urological surgery
Anaesthetic type (spinal or epidural)
Neurological or urological co-morbidities
Medication (e.g. antimuscarinics, alpha agonists, opiates)
assessment of urinary retention
ultrasonic bladder scan to identify the post-void residual urine volume
clinical features of urinary retention
Little or no urine passed in the post-operative period
A sensation of needing to void, without being able to micturate
suprapunic mass dull on percussion
common causes of acute urinary retention post operatively
uncontrolled pain, constipation, infection, or anaesthetic agents* (e.g. spinal or epidural use)
management of acute urinary retention
manage causes
any significant retention will require catheterisation (at least overnight). Patients can have their catheter removed shortly after (often termed a Trial Without Catheter (TWOC))
UTI post op complications
have higher rates of mortality and longer length of stay,
common causative organisms of UTI
E. coli, Klebsiella sp., Enterobacteur sp., Proteus sp., Pseudomonas sp., and Staphylococcus sp
risk factors for UTI
ge > 60yrs
Female
Significant co-morbidities (e.g. renal failure, diabetes mellitus)
Catheterisation (Fig. 1) or recent instrumentation
Pregnancy
Urinary retention or renal stones
Clinical features for UTI
rinary frequency, urgency, and dysuria. On examination, these patients may have mild suprapubic pain and be pyrexial.
UTI should be considered in patients presenting with
With delirium
Septic (without a clear foci of infection)
In acute urinary retention
It is also important to assess for features of pyelonephritis as well (such as loin pain, renal angle tenderness, or pyrexia).
investigations for UTI
urine dipstick*
mid stream urine for MC&S
if systemic features/ sepsis = FBC, CRP, and U&Es, blood cultures, VBG
investigations for UTI
urine dipstick*
mid stream urine for MC&S
if systemic features/ sepsis = FBC, CRP, and U&Es, blood cultures, VBG
management of UTI
he patient is well hydrated (either through PO or IV routes) and maintains a satisfactory urine output (>0.5mL/kg/hour)
Definitive management is via antibiotic therapy, referring to your local antimicrobial guidelines; classically trimethoprim, nitrofurantoin, or co-amoxiclav are typical antibiotic choices.
If pt with catheter = change it before starting abx