Challenge Library

Every challenge stays playable forever. Pick a scenario, commit to your answer, and get coached on the reasoning behind every option.

New this weekGI/Hepatic2 min

Cirrhosis → Hepatic Encephalopathy: What's the Priority?

A cirrhosis patient's mental status is slipping and his wrists show a coarse flap when you ask him to hold his arms out. The lab value and the bedside sign together tell you exactly what's happening.

Covers: hepatic encephalopathy · asterixis · safe medication administration
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NewGI2 min

Bowel Obstruction: Is Decompression Enough?

The NG tube is draining, but the vitals are not improving. Falling output, worsening distention, and a new fever tell a story you can't afford to miss.

Covers: strangulation risk · the fight-or-flight feedback loop · escalation timing
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NewGI/Hepatic2 min

Cirrhosis: Why Do the Labs Look Backward?

Peaked T waves, a low sodium, and a low albumin, all in the same cirrhosis patient. One root problem explains all three, if you know where to look.

Covers: albumin & oncotic pressure · dilutional hyponatremia · spironolactone-induced hyperkalemia
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NewAdrenal2 min

Cushing Syndrome: What's the Priority?

Three years of prednisone, a moon face, purple striae, and a wound that won't close. The steroid effects are obvious. The complication hiding underneath them isn't.

Covers: cortisol excess · infection risk · why you never stop steroids abruptly
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NewAdrenal2 min

Addison's Disease: Reading the Crisis

A known Addison's patient can't keep her hydrocortisone down, and her pressure is dropping. Sick-day rules just failed. What happens next depends on how fast you recognize it.

Covers: Addisonian crisis · sick-day management · IV vs. oral replacement
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NewAdrenal2 min

Pheochromocytoma: What Triggered This?

A routine abdominal exam, and suddenly the blood pressure spikes to 220/128. The trigger is in your own hands. Do you know what to do in the next ten seconds?

Covers: catecholamine surge · hypertensive crisis · removing the stimulus first
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NewEndocrine2 min

Thyroid Storm: Which Medication First?

A Graves' disease patient, a fresh infection, and a heart rate that won't quit. PTU matters, but it isn't fast enough on its own. Sequence is the whole teaching point.

Covers: thyroid storm · treatment sequencing · hyper vs hypo direction
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NewEndocrine2 min

Post-Thyroidectomy: Airway Emergency?

A changing voice and a fuller neck dressing after thyroid surgery. Routine recovery, or a compressing airway? The window to act is minutes.

Covers: post-op airway assessment · laryngeal nerve injury · escalation timing
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NewEndocrine2 min

Myxedema Coma: Just Cold, or an Emergency?

A hypothyroid patient found unresponsive after running out of levothyroxine. Slow heart rate, low temperature, barely responsive. Warming alone won't fix this.

Covers: hypothyroidism decompensation · recognizing triggers · IV vs oral hormone replacement
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NewEndocrine2 min

SIADH vs DI: Which Direction Is This?

Post pituitary surgery, urine output is climbing and sodium is rising. Two mirror-image conditions, one dangerous mix-up if you pick the wrong fix.

Covers: fluid balance direction · urine specific gravity · matching the fix to the mechanism
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Renal2 min

Prerenal AKI: Is This Still Reversible?

Post-op blood loss, falling urine output, climbing creatinine. One ratio tells you whether this is still a perfusion problem or already tissue damage.

Covers: naming the broken part · BUN:Cr ratio · urine output as the perfusion gauge
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Respiratory2 min

COPD → Respiratory Failure: Oxygenation or Ventilation?

A COPD exacerbation, the oxygen goes up, and the sat looks better while the patient looks worse. One cue cluster tells you the real problem is CO2, not oxygen.

Covers: ventilation vs oxygenation · CO2 retention · controlled oxygen in COPD
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Respiratory2 min

Pneumonia → Respiratory Failure: Is the Oxygen Working?

Pneumonia, and the oxygen need keeps climbing while the sats keep drifting down. One assessment cue and one trend tell you where this is heading.

Covers: recognizing consolidation · hypoxemic respiratory failure · reading the trend
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Respiratory2 min

Pancreatitis → ARDS: Why Are You Watching the Lungs?

Severe pancreatitis, and the oxygen need keeps climbing while the sats keep falling. The diagnosis is GI. The complication you're anticipating is not.

Covers: anticipating complications · refractory hypoxemia · reading the trend
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Burns2 min

Burn Shock: Is Your Resuscitation Working?

40% burns, Lactated Ringer's running per protocol. Two hours in, one finding actually tells you the fluid is reaching the organs.

Covers: evaluating outcomes · perfusion markers · why urine output wins
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Cardiac2 min

RV Infarction: Fluids or Nitro?

An inferior wall MI, crushing chest pain, and a PRN nitro order. The protocol says one thing. The physiology says another.

Covers: cue clusters · preload physiology · when the protocol is wrong
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Cardiac2 min

Acute Heart Failure: What Next?

Two hours after IV furosemide, the crackles improved. So why might this patient be in trouble?

Covers: evaluating outcomes · recognizing new cues · shifting priorities
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NewNeuro2 min

SAH vs. Meningitis: Which is MOST Concerning?

"The worst headache of my life." Neck stiffness. Photophobia. Two diagnoses fit. Only one is immediately life-threatening. Do you know which cue separates them?

Covers: thunderclap onset · recognizing cue clusters · SAH vs. meningitis
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NewElectrolytes2 min

Hyperkalemia: Why Does the QRS Widen?

K+ is 6.7 mEq/L and the QRS is widening. You know it's dangerous. But do you know WHY? Understanding the physiology makes every future hyperkalemia question easier.

Covers: membrane potential · sodium channel inactivation · EKG changes with rising K+
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