Last void, suprapubic pain, stream changes, hematuria, fever
Back pain, saddle symptoms, weakness, cancer, anticoagulation, trauma
Medication/anticholinergic/opioid exposure; neurologic disease; pregnancy
/
← All presentations
Urinary Symptoms & Acute Retention
Measure the bladder, relieve obstruction safely, and never miss cord compression or sepsis.
Your objective: explain the approach, recognize important warning signs, then test your recall.
Abbreviations explained
- ACS
- Acute coronary syndrome
- OMI
- Occlusion myocardial infarction
- ECG
- Electrocardiogram
- PE
- Pulmonary embolism
- POCUS
- Point-of-care ultrasound
- QTc
- QT interval corrected for heart rate
- LBBB
- Left bundle branch block
- RBBB
- Right bundle branch block
- hs-cTn
- High-sensitivity cardiac troponin
- CTA
- Computed tomography angiography
- ICU
- Intensive care unit
Filter
The jobMeasure the bladder, relieve obstruction safely, and never miss cord compression or sepsis.
- Assess for sepsis, renal failure, neurologic deficits, and painful distension.
- Use bladder scan and urinalysis; decompress acute retention using local catheter practice while tracking output.
- Escalate early for suspected cauda equina, infected obstruction, traumatic catheterization risk, or recurrent retention.
Dysuria and retention are often straightforward, but retention can be the first sign of cauda equina, spinal cord disease, medication toxicity, obstructed infection, or a neurologic emergency.
Cauda equina syndrome / spinal cord compression Critical
Key: Back pain with saddle sensory change, new retention/incontinence, bilateral symptoms, or weakness needs urgent MRI and spine review.
Urosepsis / infected obstruction Critical
Key: Systemic illness with urinary source needs sepsis treatment and source-control assessment.
Acute kidney injury from obstruction Emergent
Key: Bilateral obstruction, solitary kidney, anuria, or rising creatinine requires urgent decompression planning.
Prostatitis with retention Emergent
Key: Fever, pelvic pain, toxic appearance; avoid traumatic repeated instrumentation and involve urology.
UTI / medication-related / BPH-related symptoms Common
Key: Use targeted therapy and follow-up after excluding high-risk features.
Tick what your patient has — the banner updates as you go.
Vitals, suprapubic fullness, flank tenderness, genital examination when indicated
Focused lower-limb neurologic and perineal examination when red flags exist
Bladder scan before and after intervention when feasible
Bedside
- Bladder scan, urinalysis/culture when infection suspected, pregnancy test when relevant
- ECG/electrolytes/creatinine for significant retention, AKI, or systemic illness
Imaging
- Renal ultrasound for hydronephrosis/high-risk obstruction
- Urgent MRI for suspected cauda equina/spinal compression
Procedure
- Catheterize using local policy; document volume, hematuria, complications, and a removal/follow-up plan
Medication safety reminder
Use this as a first-pass prompt; verify all medications, doses, concentrations, contraindications, weight, pregnancy status, and local protocols before administration.
Check indication, allergy, route, renal/hepatic risk, interactions, monitoring, and local formulary.
Discharge
- Simple lower-tract symptoms or resolved retention with safe catheter plan and timely follow-up.
Admit / urology
- AKI, recurrent/complicated retention, infection, difficult catheterization, or high-risk anatomy.
Urgent MRI / spine / resuscitation
- Cauda equina/spinal compression or sepsis with obstruction.
Use objective reassessment and the local pathway.
Before the next decision · reassess and hand over
Use these learning prompts with the presentation’s pathway. They are not discharge criteria.
- Reassess: compare symptoms, observations and examination with the initial assessment and response to treatment.
- Warning signs for Urinary Symptoms & Acute Retention:
- Saddle anesthesia, bilateral weakness, or new bowel dysfunction
- Fever/shock or rigors with urinary symptoms
- Anuria, AKI, or a solitary kidney
- Gross hematuria/clots or traumatic catheterization
- Known malignancy, recent spinal procedure, or IV drug use with back pain
- Reconsider: check unresolved findings and alternative explanations, including the pitfalls below.
- Escalate: communicate deterioration, uncertainty or needs beyond the current setting.
- Plan the transition: identify outstanding results, responsibility for follow-up, patient understanding and specific return advice.
Clinical Pearls
- Retention plus saddle symptoms is a spine emergency.
- The discharge plan must specify catheter care and who removes it.
Pitfalls
- Attributing retention to BPH without a neurologic screen.
- Repeated traumatic catheter attempts instead of escalating.
PRACTICE REFRESHER
Rapid recall
Test your first action and the dangerous diagnoses before revealing the answer.
01 · First move
Before you scroll, what needs to happen first?
Assess for sepsis, renal failure, neurologic deficits, and painful distension.
02 · Immediate threats
Name at least two diagnoses that cannot wait.
Cauda equina syndrome / spinal cord compression · Urosepsis / infected obstruction
PRIVATE TO THIS DEVICE
Your learning note
Capture a weak point, a teaching pearl, or a question to take to your next shift.
Review schedule starts when marked reviewed
Selected guidance · source check 2026-09-07. These 1 source links support selected teaching points, not a complete review of this topic. Check population, setting and local protocol before applying a recommendation.
- Rosen’s Emergency Medicine, 10th ed. — genitourinary and spinal emergencies
- AUA urologic emergencies resources; local catheter and cauda-equina pathways