Urology Flashcards
Side-Effects of Nitrofurantoin
Lung Fibrosis
What is the acceptable limit of residual urine in patients <65
50ml
What is the acceptable limit of residual urine in patients >65
100ml
What is the mian cause of acute urinary retention in men
Benign Prostatic Hyperplasia
Signs of acute urinary retention
Palpable urinary bladder
Abdominal tenderness
What exmainations should be done for someone in acute urinary retention
Rectal (DRE) and Neurological Exmination
What is the first line investiation for someoen with acute urinary retention
urine sample/culture
What is PSA not appropriate in acute urinary retention
Typically elevated anyways
What is the GOLD standard diagnostic for acute urinary retention
Bladder USS
What confirms diagnosis of acute urinary retention on USS
A colume >300cc
What urine volume confirms that a patient doe snot have acute urinary retention
<200 cc
Where and under what circumstances should patients be referred to gynecology or neurology with acute urinary retention
Those exhibiting symptoms
What is a complication of acute urinary retention
Post-obstructive diuresis
How is post-obstructive diuresis treated
IV Fluids
What is Mirabegron used for
Overactive bladder
Pharmacology of Mirabegron
Beta 3 agonist
What is the second line treatment for an overactiev bladder if antimuscarinics (Oxybutynin) are not tolerated
Mirabegron
First line management of predominantly voiding symptoms
Pelvic floor muscle training, fluid intake restrictions
Second line: Tamsulosin
First line management of an overactive bladder
Moderating fluid intake + Bladder retraining
Oxybutynin
First line management of nocturia
Furosemide 40mg
What is the most common form of prostate cancer
Adenocarcnioma
What is TURP Syndrome
Venosu destruction causing absoprtion of irrigation fluid and hyponatraemia (looks like SIADH)
Risk factors for TURP Syndrome
Surgical Time > 1 hour Height of bad >70 cm Resected > 60g Large blood loss Perforation Large fluid use CHF poorly controlled
What causes TURP syndrome
Irrigation with Glycine causes it to be absorbed, it is hypoosmolar causing it to be absorbed systemicatically
Glycine -> ammonia at the liver causing hyperammonia and visual diasturbances
Two serum blood tests abnormalities found in TURP syndrome
Hyponatraemia
Hyper-Ammonia
What is the criteria for 2 week wait referrals to exclude bladder cancer
A patient over 60 with non visible hameturia, dyruia or raised WCC that is unexplained
WHat tumour marker is seen in seminomas
Raised hCG
LDH
What tumour markers are seen in non-seminomas
AFP OR beta-hcg
LDH
FIrst line diagnosis of testicular cancer
USS
Risk factors for testicular cancer
Infertility Cryptorchidism Family History Klinefleter's Syndrome Mumps Orchitis
What causes gynecomastia in testicular cancer
Increased oestrogen:androgen ratio
germ cell tumours -> hCG -> Leydig cel ldysfunction -> increased oestradiol and testosterone production
When do communicating hydroceles resolve in neonates
Within a few months of life- reassure mothers
What is membranous urethral rupture
Consequence of a pelvic fracture:
Perineal oedema
Prostate displaced (usually unpalpable on PR)
Haematuria
WHat is the first line management of a stone obstruction with signs of infection
Urgent decompression - Ureteroscopy or nephrostomy + IV broad spectrum antibiotics
Management of stones < 2cm
Lithotripsy
Management of stones >2cm
Percutaneous nephrolithotomy
What is the first line investigation for suspected prostate cancer
Multiparametric MRI
What scale is used to decide if someoen should be offered a multiparametric MRI
Liker scale
> 3
What type of bladder cancer is increased by schistosomiasis
Squamous cell carcinoma
What pain relief should be first line for suspected stone colics
IM Diclofenac
What is the most common type of urethral injruy
Bulbar rupture
What causes a bulbar rupture
Saddle injuries (cikes)
Signs of a bulbar rupture
TRIAD; urinary retention, perineal haematoma, blood at meatus
Two types of membranous ruptures
Extra or intraperitoneal
First line invetsigation to diagnose urethral injuries (of all type)
Ascending urethrogram
Management of urethral injuries
Suprapubic catheter
Management of intraperitoneal baldder injuries
Laparotomy
management of extraperitoneal bladder injuries
Conservative management
Histological appearance of malignant Renal Cell carcinoma
Clear cell carcinoma: Mass arising from parenchyma that is septated and contains solid and liquid components
Where do transitional cell carcinomas usually arise from (part of the urinary tract)
Ureter
What condition gives rise to angiomyolipomas
TS
Wjhat condition commonly causes renal infarcts
Infective endocarditis
What medication makes kidney stones more likely?
Diuretics
AT what tumour size should a kidney tumour be referred for a partial nephrectomy over a total nephrectomy
7cm or less
What medictaion can be given to reduce the size of an RCC tumour
alpha-interferon
Name some symptoms of prostate cancer
Urgency Hesitency Poor flow Post-micturition dribbling Intermittency Feeling of incomplete bladder emptying.
First line invetsigation for suspected prostate cancer
§PSA test
At what PSA level should a patient be referred to urology
> 3
What glesson score indicates a low-grade prostate cancer
2-6
What gleeson grade indicates a high grade prostate cancer
8-10
How can we stage prostate cancer
Bone scan
CT
or an MRI
What is the most common raidotherapy used for prostate cancer
Brachytherapy
What enzyme is repsnosible for converting testosterone to dihydrotestosterone
5 alpha reductase
Name a 5-alpha reductase inhibitor
Finasteride
What two hormone treatments are available for prostate cancer (usually used in advanced stages)
gnRH agonists: Goserelin
Anti-androgen (recpetor blockers): Flutamide
Flutamide usually given for first two weeks and then goserelin to prevent surges in testosterone
What chemotherapy is given for prostate cancer
Docetaxel
How long should someone not excersise before taking a PSA test
48 hours
How long should someone abstain before taking a PSa test
48 hours
What are some contraindications to a pSA test
UTIs Masturbation or sex Excercise Biopsy in the past 6 weeks DREs in the past week Anal
What is the first line treatment for BPH
alpha blockers
Second line: Finasteride
What is the most common surgery for BPH
Transurethral resection of the prostate
What neurological problem can cause chronic urinary retention
Spina bifida
What medications may cause urinary retention
Tricyclics
Diazepam
baclofen
Oxybutynin
What is the most common cause of urethritis
Gonnorrhoea
Signs of a urethral stricture
Reduced urine flow Sparying of urine Dribbling of urine UTIs Pain on passing urine
What causes urethral strictures
Scare tissues from previous infections or catheterisations
First line investigation for a urethral stricture
Flow rate of urine
Treatment of a stricture
Widening + IV Antibiotics to prevent further infections
Name three exmaination findings seen in epididymoorchitis
Tenderness and swelling on th eposterior side of the testicle
Pain relieved when elevating the testicle
Intact cremasteric reflex
What is the only way you get isolate orchitis
Mumps
Examination findings in orchitis
Testicular swelling and tenderness
Pain relieved on elevation
Normal cermasteric reflexes
Name three exmaination findings in tetsicular torsion
Tender, high-riding testis
Pain gets worse when elevating the scrotum
Absent cremasteric reflexes
Serum testosterone levels in cryptorchidism
Unilateral - NORMAL
Bilateral - Abnormal
What other serum levels indicate cryptorchidism
Raised LH and FSH
Reduced Inhibin B
What is a varciocele
Dilation of the pampiniform plexus
In what testis is a varciocele mor common
Left testis
Why is a rightsided varicocele a red fllag
Retroperitoneal tumour might be invading into the IVC
What happens in the transillumination test for a varciocele
They don’t transilluminate
Results of a val salva manoeuvre in a varciocele
Mass distends or gets bigger (or when coughing)
What is a hydrocele
Fluid accumulation between the visceral and parietal layer of the tunica vaginalis of the testis
What scrotal condition transilluminates?
Hydrocele
Where do tetsicular tumours typically spread haematogenously
Lung sor the Brain
What lymph nodes drain the scrotum
Superficial Inguinal lymph nodes
Which tetsicular tumours have the best prognosis
Seminomas
Microsocpic appearance of a seminoma
Fried-egg appearance
What condition can give rise to calcium phosphate stones
Renal tubular acidosis type I and II
What conditions reuslt in struvite stones formation
UTIs (proteus and klebsiella)
Describe the appearance of struvite stones
Staghorn Calculi
What stone cannot be seen on a CT KUB scan
Cystine stones
What Imaging allows cysteine stones to be seen
USS (if they are larger than 5mm)
How long should imaging take in all people with suspected stones
EMERGENCY (within 24 hours)
When should someone with urinary tract stones be admitted
Infection signs Pain relief not working Anuria No Imaging within 24 hours Diagnostic uncertainty
When is watchful waiting appropriate for kidney stones
<5mm
Within what timeframe should surgical treatment be considered for kidney stones
WIthin 48 hours of admission
Why should surgery be considered for kdiney stones within 48 hours
Can cause irreversible kdiney dmagae (lowers eGFR)
What is the first line antibiotic for pyelonephritis
Ciprofloxacin or co-amoxiclav for 7 days
When shoudl prophylaxis be considered in patients for pyelonephritis
In women who get at least three infetcions in one year
WHat is the prophylaxis used for pyelonephritis
Trimethoprim
When should people with UTIs be referred for imaging or cystoscopy
Not resopnded to treatment Previous history of tract disease Haematuria Women with recurrent infections Serious or systemic inllness signs
What is the two week wait rule for UTIs
Refer if over 45 and:
Unexplained visible haematuria without UTI or,
Visible haematuria which persists after treatment
First line managemnet of UTIs
Trimethoprim or Nitrofurantoin
Which patients should recieve 7 days course for UTIs
Men and pregnant women (anyone with complicated UTIs)
In which patients should UTI treatment be limited to three days
WOmen
If trimethoprim is unsuccessful in managing a UTI, what should be given
Nitrofurantoin
What is the only requirement that gives nitrofurantoin preference over trimethoprim for UTI treatment
if eGFR > 45
A patient comes to the GP complaining of haematospermia - what should be done (under 40)
Reassure that it is probably benign
> 40 = referral
How often should PSA levels be monitored in someone undergoing the ‘watchful wait’ approach
Annually
What is active surveillance
This is where monitoring is increased in frequency to make sure we only treat when the rate of threat increases
Name three active surveillance approaches to prostate cancer
Every 4 months - measure PSA
Every 12 months - DRE
Every 12/18 months - MRI
How do we manage hot flushes caused by hormonal treatment in prostate cancer
Medroxyprogesterone acetate
How do we manage fatigue symptoms in people with prostate cancer
Supervised exercise
Mangaement of gynecomastia caused by GnRH and flutamide
Radiotherapy
Role of PSA
Liqudify semen and allow sperm to move more freely
Diagnosis of acute prostatitis
MSU sample
Management of acute prostatitis
Ciprofloxacin 500mg once daily
Follow up in 48 hours
Management of chronic prostatitis
Just symptomatic management
When are undescended testes typically checked for
3 days after birth
6-8 weeks of age
Then 4-5 months of age if found to be undescended
What is a normal variant retractile testes
When the testes can only be felt in a warm bath
When should we consider acute pyelonephritis over Lower UTIs in children
Systematic + Bacteriuria
No systemic symptoms + bacteriuria = lower UTIs
What prophylaxis is given for UTIs
Trimethoprim 3 months
Management of asymptomatic bacteriuria in pregnant woman
Nitrofurantoin 100mg immediately