How much does UWorld cost for one Step?

UWorld costs $349–$749 per Step depending on the subscription length and included self-assessment forms. Subscriptions are sold per Step, meaning access does not transfer between Step 1, Step 2 CK, or Step 3; each exam requires an independent purchase.

Is there a free alternative to UWorld that is actually usable?

Yes. While many platforms offer only a brief 5-day trial or a locked sample set before demanding a credit card, Penziv provides a permanent free tier with 10 questions per day—allowing for about 300 questions each month with the why-you-miss diagnostic included. This allows medical students to build an uninterrupted daily study habit throughout rotations and pre-dedicated study without paying upfront.

How many free questions can I really get each month?

On the Penziv free tier, you receive 10 questions per day, which totals about 300 questions every month with full explanations and why-you-miss diagnostic tracking included. In comparison, AMBOSS base plan ($12.50/mo billed yearly) caps access at 50 questions per month, and UWorld offers no ongoing free question allowance.

Can one subscription cover Step 1, Step 2 CK, and my shelf exams?

Yes. Penziv Pro is $180/yr ($15/mo billed yearly or $25/mo billed monthly) and covers all Steps (USMLE Step 1 and Step 2 CK) as well as clinical shelf exams under a single unified subscription. In contrast, UWorld requires separate purchases of $349–$749 for each individual Step, and AMBOSS charges $448/yr for unlimited access across exams.

Is a cheaper question bank lower quality?

A lower price does not mean inferior clinical vignettes, but it does reflect different pedagogical focuses. Penziv items are built around current NBME clinical management blueprints and emphasize our why-you-miss diagnostic loop—pinpointing why you chose a runner-up distractor rather than just summarizing the diagnosis. However, our honest limit is straightforward: Penziv does not have UWorld-length track record. UWorld has refined its item pool over more than two decades, whereas Penziv provides high-yield diagnostic precision without the legacy multi-hundred-dollar cost per exam.

What do I lose by not using UWorld?

Honestly, you lose UWorld-length track record, its universal ubiquity across medical school cohorts, and the convenience of referencing the exact same question IDs with classmates during study groups. UWorld has served as the default standard in medical education for over twenty years. What you gain with Penziv is an affordable alternative ($180/yr for all Steps vs. $349–$749 per Step), an active diagnostic fingerprint that identifies the cognitive traps behind your misses, and a genuinely usable free tier of about 300 questions per month (10/day).

Looking for a UWorld Alternative? An Honest Breakdown of USMLE Question Banks

Answer questions, get a fingerprint that ranks what your misses cost you, delivered as what you study next.

Medical school is demanding enough without paying hundreds of dollars for every individual board exam. If you are evaluating a modern question bank that includes all Steps without separate paywalls, here is a transparent look at pricing, daily allowances, and clinical trade-offs. Free includes 10 questions per day with the diagnostic; Pro is $180/yr ($15/mo billed yearly or $25/mo monthly).

By Jed Whetten, MD Candidate, University of Arizona College of Medicine – Phoenix.

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Worked Clinical Vignettes

Work through authentic cases from the Penziv item bank across preclinical and clinical clerkship disciplines.

Case 1: Cervical Syringomyelia & Anterior White Commissure Decussation

A 32-year-old woman presents to the clinic with bilateral upper extremity numbness and clumsiness of her hands that has developed over the past 9 months. She mentions that she has sustained several painless burns on her fingers and forearms while cooking. Neurologic examination shows a bilateral loss of pinprick and temperature sensation across both shoulders, upper chest, and upper extremities in a 'cape-like' distribution. Sensation to light touch, vibration, and proprioception is completely preserved throughout all dermatomes. Upper extremity deep tendon reflexes are 1+ bilaterally, while lower extremity reflexes are 2+ bilaterally with flexor plantar responses. Motor strength is 5/5 in all major muscle groups. Which of the following anatomical structures is primarily damaged in this patient's underlying condition?

Anterior white commissure of the spinal cord— Correct Answer

Dorsal root entry zone of the cervical spinal cord

Posterolateral sulcus of the cervical spinal cord

Nucleus cuneatus in the caudal medulla

Intermediolateral cell column of the thoracolumbar cord

Explanation:

Syringomyelia is characterized by a fluid-filled cavity (syrinx) within the central canal of the spinal cord that first compresses the decussating fibers of the spinothalamic tract in the anterior white commissure, producing bilateral, dissociated loss of pain and temperature sensation in a cape-like distribution.

Clinical recognition: The patient presents with painless burn injuries and bilateral loss of pain and temperature sensation in the upper extremities and upper torso with preserved light touch, vibration, and joint position sense (dissociated sensory loss), typical of syringomyelia (often associated with Arnold-Chiari type I malformation).
Anatomical pathway: Second-order sensory neurons of the spinothalamic tract originate in the dorsal horn, cross the midline via the anterior white commissure 1 to 2 segments above their entry level, and ascend to the ventral posterolateral (VPL) nucleus of the thalamus.
Lesion pathophysiology: Because the anterior white commissure lies directly adjacent to the expanding central canal (most commonly in the cervical spinal cord, C8–T1), these decussating spinothalamic fibers are damaged first, leading to symmetric, bilateral loss of pain and thermal sensation limited to the affected spinal levels.

Syringomyelia damages crossing spinothalamic axons in the anterior white commissure -> bilateral 'cape-like' pain/temperature loss.
Dorsal columns (vibration and proprioception) ascend uncrossed on the ipsilateral side and are spared in early disease.

Case 2: Shoulder Dystocia & McRoberts Maneuver with Suprapubic Pressure

A 28-year-old gravida 2, para 1, with gestational diabetes mellitus managed with diet delivers the fetal head vaginally after an uncomplicated second stage of labor. Immediately after delivery of the head, the anterior fetal shoulder becomes impacted behind the maternal pubic symphysis, and the fetal chin retracts tightly against the perineum (turtle sign). Gentle downward traction fails to deliver the anterior shoulder. The physician immediately calls for additional personnel. Which of the following is the most appropriate initial maneuver to relieve this complication?

Hyperflexion of maternal hips onto the abdomen with concurrent suprapubic pressure— Correct Answer

Direct fundal pressure applied during maternal expulsive effort

Intentional fracture of the fetal clavicle

Cephalic replacement into the pelvis followed by cesarean delivery

Delivery of the posterior arm via insertion of the entire hand into the posterior vagina

Explanation:

The initial management of shoulder dystocia consists of calling for help, avoiding excessive traction, and performing the McRoberts maneuver (hyperflexion of maternal thighs) combined with suprapubic pressure.

The vignette describes acute shoulder dystocia, heralded by failure of the anterior shoulder to deliver and the retraction of the fetal chin against the perineum (turtle sign).
Excessive or downward traction on the fetal head must be strictly avoided to prevent stretching or avulsion of the brachial plexus (Erb-Duchenne palsy).
The McRoberts maneuver involves sharp hyperflexion and abduction of the maternal hips against the abdomen, which flattens the lumbar lordosis, tilts the pelvis cephalad, and maximizes the obstetrical conjugate diameter.
Concurrent suprapubic pressure (applied by an assistant in a downward and lateral vector) dislodges the anterior shoulder from behind the pubic symphysis into the oblique pelvic diameter.

Shoulder dystocia first steps: Call for help, McRoberts maneuver + suprapubic pressure.
Fundal pressure is strictly contraindicated (worsens impaction and risks uterine rupture).
Secondary maneuvers include rotational maneuvers (Rubin, Woods screw) and delivery of the posterior arm.

Case 3: Ventricular Tachycardia Storm & Stellate Ganglion Sympathetic Blockade

A 68-year-old man with a history of prior anterior wall myocardial infarction and an implanted dual-chamber cardioverter-defibrillator (ICD) is brought to the emergency department after experiencing 7 ICD discharges within the preceding 3 hours. On arrival, he is conscious, anxious, and diaphoretic. His blood pressure is 102/64 mm Hg, pulse is 88/min, and respirations are 20/min. Telemetry monitoring reveals sinus rhythm intermittently interrupted by sustained monomorphic ventricular tachycardia at 195/min that triggers successful ICD shocks, followed immediately by non-sustained runs of ventricular ectopy. Serum potassium is 4.3 mEq/L and magnesium is 2.2 mg/dL. He has already received a weight-based intravenous bolus and continuous infusion of amiodarone, along with intravenous metoprolol 5 mg every 5 minutes for three doses. Despite these measures, he experiences two additional sustained episodes of ventricular tachycardia with ICD shocks. Which of the following advanced interventions is most appropriate at this time to suppress this patient's electrical storm?

Administration of intravenous digoxin bolus

Endotracheal intubation with deep sedation and percutaneous left stellate ganglion blockade— Correct Answer

Immediate reprogramming of the ICD to deliver prophylactic high-rate antitachycardia pacing indefinitely

Intravenous diltiazem infusion

Intravenous isoproterenol infusion

Explanation:

Refractory ventricular tachycardia electrical storm despite maximal antiarrhythmic pharmacotherapy (amiodarone and beta-blockers) requires suppression of intense sympathetic outflow through deep sedation, endotracheal intubation, and autonomic modulation such as percutaneous left stellate ganglion blockade.

Clinical Scenario: The patient is in electrical storm (>=3 discrete sustained ventricular tachyarrhythmia episodes requiring intervention within 24 hours). Despite dual antiarrhythmic therapy with amiodarone and IV beta-blockers, recurrent ventricular tachycardia persists.
Pathophysiology of Storm: Recurrent ICD shocks provoke extreme panic, pain, and heightened endogenous sympathetic tone. This hyperadrenergic state triggers calcium overload and automaticity, creating a vicious self-reinforcing cycle that fuels recurrent arrhythmogenesis.
Therapeutic Priority: When conventional antiarrhythmics fail, blunting sympathetic neurotransmission is lifesaving. General anesthesia/deep sedation (e.g., propofol, dexmedetomidine) reduces central sympathetic drive. Percutaneous left stellate ganglion block (or thoracic epidural anesthesia) interrupts cardiac sympathetic innervation, dramatically reducing VT recurrence and stabilizing the patient for catheter ablation or mechanical circulatory support.

Electrical storm is defined as >=3 sustained VT/VF episodes in 24 hours.
Beta-blockers are the cornerstone of medical therapy (non-selective like propranolol often superior to metoprolol due to beta-2 blockade).
Refractory storm requires neuraxial modulation (stellate ganglion blockade) and deep sedation/intubation to break sympathetic surge.

Case 4: Unstable Complete Heart Block & Transcutaneous Cardiac Pacing

A 74-year-old woman is brought to the emergency department after a witnessed syncopal episode while standing in church. She regained consciousness after approximately 20 seconds but reports persistent fatigue and lightheadedness. She has a history of hypertension treated with hydrochlorothiazide and amlodipine. On arrival, she is oriented but appears lethargic. Blood pressure is 78/42 mm Hg, pulse is 32/min, respirations are 16/min, and oxygen saturation is 96% on room air. Cardiopulmonary examination shows profound bradycardia with regular rhythm, intermittent prominent jugular venous pulsations in the neck, and clear lung fields. A 12-lead electrocardiogram demonstrates regular P waves at 80/min and regular wide QRS complexes at 32/min with no relationship between the P waves and QRS complexes. An initial dose of 1 mg intravenous atropine produces no change in heart rate or blood pressure. Which of the following is the most appropriate next step in management?

Immediate transcutaneous cardiac pacing— Correct Answer

Administration of a second 1 mg dose of intravenous atropine

Intravenous adenosine, 6 mg rapid push

Intravenous diltiazem infusion

Oral fludrocortisone and midodrine therapy

Explanation:

Third-degree (complete) atrioventricular block with hemodynamic instability that is unresponsive to atropine requires immediate transcutaneous pacing as a bridge to transvenous and permanent pacemaker placement.

Clinical Scenario: The patient presents with symptomatic, hemodynamically unstable bradycardia (hypotension, lightheadedness, syncope, lethargy). Cannon 'a' waves (prominent JVP pulsations) reflect right atrial contraction against a closed tricuspid valve.
ECG Analysis: The ECG demonstrates AV dissociation with regular atrial activity (P waves at 80/min) and an independent, slower ventricular escape rhythm (wide QRS at 32/min), confirming third-degree (complete) AV block with an infranodal (ventricular or low-Purkinje) escape rhythm.
Management Algorithm: Atropine (an anticholinergic agent that enhances AV nodal conduction) is first-line in ACLS for symptomatic sinus bradycardia or high-grade AV block at the AV nodal level. However, for infranodal complete AV block with a wide QRS escape rhythm, atropine is almost always ineffective because vagal innervation does not extend below the AV node. In an unstable patient who fails to respond to atropine, immediate transcutaneous pacing must be initiated without delay to restore perfusion.

Third-degree AV block presents with complete dissociation between P waves and QRS complexes.
Infranodal blocks (wide QRS escape) do not respond to atropine; unstable patients require immediate cardiac pacing.
Transcutaneous pacing serves as an emergency bridge while preparing for transvenous pacing and permanent pacemaker implantation.

Case 5: Postpartum Endometritis & Clindamycin-Gentamicin Regimen

A 24-year-old primipara presents on postpartum day 3 with fever, chills, and increasing lower abdominal pain. She underwent an uncomplicated primary cesarean delivery for arrest of descent following 22 hours of ruptured membranes and prolonged labor. Her temperature is 38.9°C (102.0°F), blood pressure is 112/68 mm Hg, and pulse is 108/min. Physical examination reveals exquisite tenderness over the lower uterine segment. The Pfannenstiel incision is clean, intact, and without erythema or drainage. Pelvic examination demonstrates foul-smelling, purulent lochia with cervical motion tenderness. Urinalysis shows no pyuria or bacteriuria. Which of the following is the most appropriate empiric antimicrobial regimen?

Intravenous clindamycin plus gentamicin— Correct Answer

Oral amoxicillin-clavulanate

Intravenous ampicillin plus sulbactam

Intravenous vancomycin monotherapy

Intravenous cefazolin plus metronidazole

Explanation:

Postpartum endometritis is a polymicrobial infection most commonly developing after cesarean delivery; the gold-standard first-line treatment is intravenous clindamycin (covering anaerobes and gram-positives) plus gentamicin (covering gram-negative aerobes).

Clinical Presentation: Postpartum fever (>=38.0°C / 100.4°F), lower abdominal/uterine tenderness, and purulent, foul-smelling lochia on day 3 post-cesarean delivery establish the diagnosis of acute postpartum endometritis.
Risk Factors: Cesarean delivery is the single most significant risk factor (representing a 5- to 10-fold increased risk compared to vaginal delivery), exacerbated by prolonged rupture of membranes (>18–24 hours) and protracted labor.
Microbiology & Regimen: Postpartum endometritis is polymicrobial, involving ascension of cervicovaginal flora into the uterine cavity (anaerobes including Bacteroides and Peptostreptococcus, gram-negative bacilli such as E. coli and Klebsiella, and gram-positive cocci including Group B Streptococcus). The definitive gold-standard empiric parenteral regimen is IV clindamycin (900 mg q8h) plus IV gentamicin (5 mg/kg daily or 1.5 mg/kg q8h). Ampicillin is added only if enterococcal infection is suspected or if the patient fails to defervesce within 48 to 72 hours.

Cesarean delivery + fever + uterine tenderness + foul lochia = postpartum endometritis.
Gold standard treatment: IV clindamycin + IV gentamicin.
Treatment continues parenterally until the patient is afebrile for >=24 to 48 hours and clinically improved (oral transition is not required).

Question Bank Comparison: Verified Facts

Compare subscription models, true monthly limits, and all-Step coverage across major medical platforms.

UWorld

Legacy Benchmark

$349–$749

Per Step depending on term (separate purchase per exam)

No usable free tier: Brief trial only; no ongoing free monthly questions.
Purchased per Step: Step 1, Step 2 CK, and shelf access each require separate payments.
Established legacy: Decades-long track record and widespread cohort familiarity.

Best if you require the exact question IDs referenced by your study group.

AMBOSS

Dual Tier Model

$448/yr

For unlimited questions ($12.50/mo base plan caps at 50 Qs/mo)

50 Qs/mo cap on Base: The $12.50/mo base plan caps at 50 questions per month.
$448/yr for Unlimited: Unlimited question access requires upgrading to the $448/yr tier.
Clinical library: Comprehensive integrated medical knowledge library.

Best if you frequently search clinical articles alongside practice questions.

Penziv

All-Step Access

Free / $180/yr

Pro is $15/mo billed yearly ($180/yr) or $25/mo billed monthly

Usable free tier: Free includes 10 questions/day (~300 Qs/mo) with the diagnostic included.
All Steps covered: One Pro subscription covers Step 1, Step 2 CK, and all shelf exams.
Honest limit: No UWorld-length track record.

Best for diagnostic precision, 50/50 split remediation, and multi-exam coverage.

Penziv's Plain Statement of Honest Limit:

Penziv does not have UWorld-length track record. UWorld has been the default question bank in medical education for over two decades. If your study approach requires taking the exact same question IDs that your classmates discuss in group chats, UWorld provides that historical ubiquity. Penziv is designed for students who want a diagnostic engine that pinpoints cognitive traps without paying $349–$749 for every single exam.

Frequently Asked Questions

Clear, transparent answers to common questions about question bank pricing, allowances, and multi-exam coverage.

Connected Systems & Exam Blueprints

Explore clerkship question banks and official NBME content specifications.

Internal Medicine Shelf

Cardiovascular, pulmonary, renal, and inpatient clinical management algorithms.

Surgery Shelf

Acute abdomen triage, trauma resuscitation, and perioperative surgical management.

Pediatrics Shelf

Developmental milestones, neonatal emergencies, and pediatric diagnostics.

Obstetrics & Gynecology Shelf

Antepartum care, labor complications, pelvic pathology, and oncologic screening.

Psychiatry Shelf

Diagnostic criteria, psychopharmacology side effects, and crisis interventions.

Neurology Shelf

Anatomical localization, stroke syndromes, movement disorders, and altered mental status.

Family Medicine Shelf

Preventive guidelines, chronic disease staging, and outpatient screening protocols.

Cardiology Questions

Pressure-volume loops, acute valvular lesions, and coronary hemodynamics.

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