USMLE Step 3: CCS First 60 Seconds Algorithm

Your Autopilot Protocol for the First Minute of Any Case

Key Strategy: This shows the scoring engine that you're a safe physician who stabilizes first, then works up the problem.

Critical Steps

6

Score Impact

High

Time Frame

60 Sec

Cases Covered

100%

1

Stabilize Airway, Breathing, Circulation (ABC)

Oxygen

Nasal cannula, mask, or intubation if severe distress/AMS

IV access ×2 large-bore

Secure adequate venous access

Cardiac monitor / telemetry

Continuous heart rhythm monitoring

Pulse oximetry

Continuous oxygen saturation monitoring

Vital signs q1h (or q15–30min if unstable)

Frequent monitoring based on stability

IV fluids (NS/LR bolus)

If hypotensive, dehydrated, septic

2

Quick Bedside Safety Checks

Fingerstick glucose

Any AMS, weakness, diaphoresis

IV access for meds

Fluids, glucose, antibiotics

Pain/fever control

Acetaminophen, morphine/NSAID as appropriate

3

Place the Patient in the Right Location

ER

Unstable, chest pain, SOB, trauma, sepsis

ICU

Shock, respiratory failure, severe ACS, DKA with AMS

Ward / Med-Surg

Stable but needs admission

Clinic/Outpatient

Stable non-emergent

📌 Location change itself earns points

4

Universal Early Tests

CBC

Infection, anemia, bleeding

CMP/BMP

Electrolytes, renal/liver status

UA ± culture

UTI, sepsis workup

EKG

Chest pain, SOB, AMS, sepsis, arrhythmia risk

Chest X-ray

SOB, chest pain, fever, trauma

β-hCG (pregnancy test)

All women of childbearing potential

5

Infectious Precautions if Febrile/Septic

Blood cultures ×2

Before antibiotics

Empiric IV antibiotics

Do not delay if sepsis/meningitis

Urine culture / Sputum culture

If source suspected

6

Early Orders That Show Good Care

NPO

If surgery/procedure possible (abdominal pain, GI bleed)

Type & screen / crossmatch

If bleeding, trauma, or OR risk

Continuous monitoring

Telemetry, neuro checks, I&O, daily weights if CHF/sepsis

Consult early if clear

Surgery (acute abdomen), OB (pregnancy complication), Psych (SI/HI), ID (sepsis)

How to Use It on Exam Day

As soon as the case opens: Fire off oxygen, IV, monitor, pulse ox, vitals, glucose.

Place the patient in the appropriate location (ER → ICU vs floor).

Order universal labs + imaging based on presentation.

Add cultures/antibiotics if febrile or signs of infection.

Advance time a few minutes → reassess vitals/labs.

💡 This is the single most powerful tool you can have for CCS. Think of it as your autopilot protocol: what to order in the first minute of any case before you even start tailoring to the scenario.

CCS First 60 Seconds Visual Algorithm

Initial Actions (First 30 Seconds)

1
Oxygen + IV Access
2
Cardiac Monitor + Pulse Ox
3
Fingerstick Glucose
4
Place Patient (ER/ICU/Floor)

Follow-up Actions (Next 30 Seconds)

5
Universal Labs (CBC, CMP, UA)
6
EKG + CXR if indicated
7
Pregnancy Test (if WOCBP)
8
Cultures + Empiric Abx (if febrile)