Urology Flashcards
main conditions covered in urology
UTI Incontinence Bladder cancer Stones Testes pathology Prostate pathology
most common cause of UTI
ascending infection - bacteria from large bowel colonises up through urethra
presentation of UTI
dysuria (pain) polyuria (increased frequency) nocturia (getting up to pee in night) pyelonephritis: fever loin pain rigors
what is pyelonephritis
upper uni (of ureters and kidneys)
what is cystitis?
inflammation of the bladder - not always infection
investigations for UTI
dipstick culture rarely microscopy
what does urine dipstick show in UTI
high nitrates -though not with enterococcus, staphylococci and pseudomonas leukocytes
Kass’s criteria for UTI culture
>10^5 organisms = significant <10^3 = no infection 10^4 = repeat sample
most common causative organisms for UTI
E.coli Proteus Pseudomonas aeruginosa Enterococcus Staphylococcus saprophytic
what type of bacteria is e.coli
gram -ve coliform causes fever due to endotoxin
how does a Proteus UTI present
FOUL smelling urine -like burnt chocolate? struvite stones increased urinary pH urolithiasis (renal stones)
how does a pseudomonas UTI present
gram -ve bacillus associated with catheters resistant to most antibiotics except ciprofloxacin
how does an enterococcus UTI present
most commonly hospital required comes from GI tract
how does a staphylococcus saprophyticus UTI present
in women of child bearing age gram -ve staph
treatment of female lower UTI
nitrofurantoin or trimethoprim 3 days
male UTI - uncatherterised treatment
nitrofurantoin or trimethoprim 7 days
complicated UTI/pyelonephritis/urosepsis treatment
IV amoxicillin + gentamicin for 3 days
what are the main types of incontinence
stress incontinence urge incontinence overflow incontinence
presentation and cause of stress incontinence
dribbles of urine on coughing, sneezing or excretion caused by weak pelvic floor causing bladder neck/urethra hyper mobility or neuromuscular defects causing spinster deficiency urine leaks when urethral resistance is exceeded by abdominal pressure
presentation and cause of urge incontinence
sudden urge to go - can be triggered by taps, being at front door ect often cant make it to the toilet caused by overactivity of the detrusor muscle
presentation and cause of overflow incontinence
caused by bladder outflow obstruction more common in men - caused by BPH constant dribbling
treatment for stress incontinence
lifestyle: -reduce caffeine intake -weight loss, stop smoking -pelvic floor exercises drugs: -Duloxetine (SNRI) Surgery -transvaginal tape -colposuspension (bit of bowel wrapped round urethra to keep it up)
treatment for urge incontinence
reduce caffeine bladder training antimuscarinics - oxybutynin
incontinence investigations
urinalysis - look for UTI/renal impairment bladder chart -record voided volumes, frequencies and incontinence pad test -determines severity urodynamics -records bladder volume and pressure
how to treat overflow incontinence
treat the BPH
BPH treatment
alpha blockers (tamsulosin) spironolactone TURPS (transurethral resection of the prostate)
what are renal stones made of
80% are calcium oxalate calcium phosphate uric acid struvite
what is a staghorn calculus
renal calculus in the shape of a stag horn body sits in the renal pelvis and horns extend into renal calyxes usually composed of struvite