Clinical (Week 3) Flashcards
What are the types of urethral incontinence?
Overflow
Urge
Stress
Mixed
What are the types of extraurethral incontinence?
Ectopic ureter
Fistula
A huge palpable bladder, often wet at night and renal impairment suggest what kind of incontinence?
Overflow
Frequency, urgency provoked by standing up/coughing/laughing and enuresis suggest what kind of incontinece?
Urge
What causes urge incontinence?
Detrusor overactivity:
- Contracting during inhibition of voiding
How can we diagnose urge incontinence?
Urodynamics
How can pelvic surgery or fractures result in urge incontinence?
- PNS nerves damaged
- Residual urine
- Infection
- Bladder irritation
- Overstimulation
What causes stress incontinence?
Increased intra-abdominal pressure without detrusor contraction
What causes stress incontinence?
Damage to the following during childbirth:
- Pelvic floor - Urethral function
How does the bladder appear on abdominal exam in a patient with urinary retention?
Painless Palpable Arises in pelvis Cannot 'get below' it Dull to percussion
How do we treat overflow incontinence?
Assess renal function Treat obstruction -> Catheterise Rehabilitate bladder (Teach self-catheterisation)
What dietary advice in urge incontinence?
Caffeine
What medical therapy can be used to treat urge incontinence?
Antimuscarinics: - Oxybutynin - Tolterodine β3-adrenergics: - Mirabegran
What are some alternative treatments to treating urge incontinence? (Apart from medication)
Botox (unlicensed)
Neuromodulation
Enterocytoplasty
What lifestyle advice is given to assist in the treatment of stress incontinence?
Weight loss
Stop smoking
What is the first line treatment for stress incontinence?
Physiotherapy
What pharmacology treatment is available for stress incontinence?
Duloxetine (SSRI-5HT inhibitor)
Norepinephrin reuptake inhibitor
What surgery is available for stress incontinence?
Colposuspension
Minimally invasive ‘tape’ procedures
What can cause a vesico-vaginal fistula?
Prolonged obstructed labour
How do we define haematuria?
Presence of >=5 RBCs per high-field power
In 3/3 consecutive centrifuged samples
>=1 week apart
A patient with microscopic haematuria due to a lower urinary tract pathology are likely to have what symptoms?
Hesitancy
Frequency
Urgency
Dysuria
Symptomatic, microscopic haematuria from an upper urinary tract pathology usually presents with what symptom?
Renal colic
If there is profound haematuria what might you suspect?
Malignancy
How much blood much be present in 100ml of urine to be seen?
1ml
What are some non-pathological causes of red urine?
Menstruation
Food (Beetroot, blackberries, rhubarb)
How can myoglobin end up in the urine?
Rhabdomyolysis
McArdle syndrome
Bywaters/Crush syndrome
Which of the following drugs does not cause red urine:
- Doxyrubicine
- Furosemide
- Chlorqine
- Rifampicin
- Nitrofurantoin
- Senna
Furosemide
What toxins can cause red urine?
Lead
Mercury
What can cause brown urine?
Urobillinogen: - Haemolysis - Icterus - Liver dysfunction Porphyria
Patients over what age are at an increased risk of malignancy if they present with microscopic haematuria?
40 years
What past medical history might increase the risk of malignancy in a patient presenting with microscopic haematuria?
Urological disorder
Irritative voiding
UTI
Why is it important to drain a distended bladder slowly?
To prevent decompression haematuria
How do renal stones cause haematuria?
Scratch mucosa
What causes pneumaturia?
Connection between bowel and bladder
In regard to haematuria, what do the following indicate:
- Fresh red blood
- Dark blood with clots
- Vermiform (wormlike) clots
- Active bleed
- Resolving bleed
- Kidney/UUT bleed -> Clot forms in ureter -> Frank pain
If blood is present in 1st voiding, where is the bleeding likely to be coming from?
Urethra
Prostate
Ingestion of Aristolochia increases the risk of what in what country?
Transitional cell cancer in China
Schistosomiasis is common in what country and what does it lead to an increased risk of?
Egypt
Squamous cell bladder cancer
When taking a history in a patient with haematuria, what cancer is a patient’s family history is very relevant?
Prostate
What can phenacetin abuse cause?
Renal epithelial cancer
What features of urinalysis may suggest a UTI?
Leukocytes
Protein
Nitrites
Blood
What is the definitive diagnostic method for UTI?
Urine culture (Send in Boricon container, must be received within 24 hours)
What is the gold standard investigation into haematuria (and renal problems)?
CT urogram (with IV contrast)
What is the first line investigation into haematuria in the case of trauma?
CT
How can we best view the bladder?
Cytoscopy/Urethrocytoscopy
What is acute urinary retention?
Anuria with increasing pain
What can precipitate BPH?
Surgery/Anaesthesia Catheterisation Medications: - Sympathomimetics - Anticholinergics
If a patient has painful retention with
Alpha blocker before a trial without catheter:
- Alfusozin - Tamsulosin
Which of the following is not associated with post-obstructive diuresis after chronic obstruction:
- Uraemia
- BPH
- Oedema
- CCF
- Hypertension
BPH
What causes post-obstructive diuresis?
Solute diuresis; Retained: - Urea - Na+ - Water Defect in kidney's concentrating ability
When should we suspect post-obstructive diuresis?
If urine output is >200ml/hr
How do we treat severe post-obstructive diuresis?
IV fluids
Na+ replacement
How long does a mild post-obstructive diuresis take to resolve on its own?
24-48 hours
What mediates the pain felt in ureteric colic?
Prostaglandins
How do we treat ureteric colic due to calculi?
NSAID +/- opiate
Tamsulosin for small stones expected to pass
What is the chance of a renal calculi passing if its diameter is
80%
When would we intervene in assisting the passage of a renal stone?
If not resolved in a month
Which of the following is not an indication for emergency treatment of a renal stone:
- Pain unrelieved
- Pyrexia
- Persistent nausea/vomiting
- Reduced urine output
- High grade obstruction
Reduced urine output
What is the first line emergency treatment for a renal calculus?
Ureteric stent
If there is no infection, how could we treat a renal calculus?
Stone fragmentation or removal
When would we carry out a percutaneous nephrostomy in the treatment of a renal calculus?
If infected hydronephrosis
How do we induce clot retention in frank haematuria?
Use a 3-way irrigating haematuria catheter
What is the first line investigation for frank haematuria?
CT urogram
What is the second line investigation for frank haematuria?
Cytoscopy
A 16 year old boy presents with acute onset pain in his suprapubic area. He tells you it came on while he was playing rugby. He has vomited a number of times. On examination, the left testis appears high in the scrotum and there is absence of the cremasteric reflex
Spermatic cord torsion
What can obliterate landmarks in a scrotal/testicular examination?
Acute hydrocoele and oedema
What investigation can be useful for scrotum pathology?
Doppler USS
How can we resolve spermatic cord torsion?
2 or 3 point fixation with fine, non-absorbable sutures or removal of the necrotic testis
What is the most common anatomical precipitant of spermatic cord torsion?
Bell-Clapper deformity:
- Testis is inadequately affixed to the scrotum
A 18 year old boy presents with tenderness on the upper pole of his left testis. On examination, the testis is still mobile and the cremaster reflex is present. You notice a ‘blue dot’ sign
Torsion of testicular appendage
What are the common presenting symptoms of epididymitis?
Dysuria
Pyrexia
What can predispose to epididymitis?
UTI
Urethritis
Catheterisation
Which of the following is not present on investigation of a patient with epididymitis:
- Present cremasteric reflex
- Pyuria
- Elevated testis
Elevated testis
On doppler USS of a patient with epididymitis, what would you expect to see?
Swollen epididymis
Increased blood flow
What is the appropriate management of epididymitis?
Analgesia
Ofloxacin:
- 400mg/day
- For 2 weeks
If we take a urine sample in a patient with epididymitis, what would we ask microbiology to do?
Culture
Chlamydia PCR
A patient presents with a mildly tender and itchy testis. On examination there is no fever and the testes are only very slightly tender.
Idiopathic Scrotal Oedema
What can precipitate paraphimosis?
Catheterisation
Cytoscopy
What is paraphimosis?
Painful swelling of foreskin distal to the phimatic ring
Which of these is not a recommended treatment for paraphimosis:
- Iced glove
- Granulated sugar for 1-2hours
- Punctures in oedematous skin
- Manual glans compression with distal foreskin traction
- Dorsal slit
- Emergency circumcision
Emergency circumcision:
Circumcision is often carried out after it resolves to prevent future episodes
What is priapism?
Prolonged erection (>4hrs)
True of false; priapism is most often associated with sexual arousal?
False
Which of the following is not a recognised cause of priapism:
- Intracorporeal papaverine for ED (vasodilator)
- Trauma
- Paraphimosis
- Sickle cell anaemia
- Neurological conditions
- Idiopathic
Paraphimosis
What causes ischaemic priapism and what is the pathophysiology?
Veno-occlusion or low-flow;
- Vascular stasis - > Reduced venous outflow
How do the corpora cavernosum appear in ischaemic priapism?
Rigid and tender