USMLE Step 3: Common Case-Specific Bundles

Prebuilt Mini-Order Sets for High-Yield Step 3 Scenarios

🚀 Key Strategy: These bundles save you time and guarantee you don't miss points on common CCS scenarios.

Common Bundles

9

Cases Covered

80%+

Score Impact

High

Time Saved

Significant

Chest Pain / ACS

Initial Stabilization

O2 if hypoxic, IV access, monitor, pulse ox

Diagnostics

EKG, troponin × serial, CXR

Medical Management

Aspirin + nitrates + heparin + statin + beta-blocker (unless contraindicated)

Disposition

Cardiology consult, admit to CCU/telemetry

Sepsis

Initial Stabilization

O2, IV fluids (30 mL/kg bolus), monitor, pulse ox

Diagnostics

Blood cultures, UA/culture, CXR, lactate

Medical Management

Broad-spectrum IV antibiotics within 1 hour

Disposition

Admit ICU if unstable, add vasopressors if MAP <65

DKA / HHS

Initial Stabilization

O2, IV access, monitor

Fluid Management

IV fluids (NS → switch to D5½NS when glucose <200)

Medical Management

Insulin infusion, potassium protocol (replace if <5.3)

Monitoring & Disposition

BMP q2–4h, check phosphorus, admit ICU if AMS or severe

COPD / Asthma Exacerbation

Initial Stabilization

O2 (target 88–92% for COPD)

Medical Management

Nebulized albuterol/ipratropium, systemic steroids

Diagnostics

CXR, ABG

Additional Considerations

+/- antibiotics if fever/sputum

Stroke

Initial Stabilization

O2, IV access, monitor

Diagnostics

CT head without contrast STAT

Treatment

If ischemic within window → tPA or thrombectomy

Monitoring & Disposition

Neuro checks q1h, admit ICU/stroke unit, aspirin if not a candidate for tPA

GI Bleed

Initial Stabilization

2 large-bore IVs, monitor, pulse ox, IV fluids

Diagnostics

Type & cross, CBC, CMP, coags

Medical Management

IV PPI, NPO, octreotide + ceftriaxone if variceal suspected

Consultation

GI consult for urgent EGD

OB Emergencies

Ectopic Pregnancy

IV access, monitor, type & cross, OB consult, β-hCG, TVUS, laparotomy if ruptured

Preeclampsia/Eclampsia

Magnesium sulfate, IV labetalol/hydralazine, OB consult, delivery if ≥34wks or unstable

Preterm Labor

Tocolytics (if no contraindication), betamethasone, GBS prophylaxis

Pediatrics

Febrile Infant <28 Days

Admit, blood/urine/CSF cultures, empiric IV antibiotics

Croup

O2, nebulized epi if severe, steroids, cool mist

Asthma

Albuterol, steroids, O2, peak flow

Why This List Matters

High-Yield Scenarios

Step 3 has ~10–12 classic CCS scenarios that repeat across exams.

Instant Recall

If you can recall these bundles instantly, you won't waste time thinking "what did I forget?"

Comprehensive Approach

These guarantee you hit diagnosis + stabilization + treatment + consult + disposition all at once.

Time Efficiency

Prebuilt mini-order sets save you time and guarantee you don't miss points.