A 32-year-old man is brought to the trauma bay after a high-speed motor vehicle collision. During the primary survey, you identify severe facial trauma with airway compromise. Which feature best distinguishes a PRIMARY survey finding from a SECONDARY survey finding in this patient?

Question

Accepted Answer

D. Immediate assessment of airway patency and breathing effort. ## Primary vs. Secondary Survey: Key Distinction

**Key Point:** The PRIMARY survey focuses on life-threatening conditions that must be identified and managed within the first 60–90 seconds. The SECONDARY survey is a detailed, systematic head-to-toe examination performed after the patient is stabilized.

### Primary Survey (ABCDE)

| Component | Focus | Timing |
|-----------|-------|--------|
| **A** — Airway | Patency, breathing effort, stridor | Immediate (<60 sec) |
| **B** — Breathing | Chest rise, breath sounds, SpO₂ | Immediate (<60 sec) |
| **C** — Circulation | Pulse, BP, perfusion, bleeding control | Immediate (<60 sec) |
| **D** — Disability | GCS, pupil reactivity, gross motor | Immediate (<60 sec) |
| **E** — Exposure | Undress, prevent hypothermia | Immediate (<60 sec) |

### Secondary Survey (Head-to-Toe)

Performed AFTER primary survey is complete and patient is stabilized:
- Detailed neurological exam (cranial nerves, motor/sensory)
- Palpation of facial bones, teeth occlusion
- Imaging (CT, X-rays)
- Wound exploration and characterization

**High-Yield:** In facial trauma, the PRIMARY survey asks: "Is the airway patent? Can the patient breathe?" The SECONDARY survey asks: "Are there fractures? Is there nerve injury?"

**Clinical Pearl:** Immediate assessment of airway patency and breathing effort (option B) is a PRIMARY survey action — it must be done in the first minute. All other options (detailed neuro exam, palpation of facial bones, imaging) are SECONDARY survey components performed after stabilization.

**Mnemonic:** **ABCDE** = **A**irway, **B**reathing, **C**irculation, **D**isability, **E**xposure — these are PRIMARY. Everything else is SECONDARY.

Answer

A. Palpation of facial bones and assessment of malocclusion

Answer

B. Detailed neurological examination including cranial nerve assessment

Answer

C. Computed tomography of the head and cervical spine

A 32-year-old man is brought to the trauma bay after a high-speed motor vehicle collision. During the primary survey, you identify severe facial trauma with airway compromise. Which feature best distinguishes a PRIMARY survey finding from a SECONDARY survey finding in this patient?

Explanation

Primary vs. Secondary Survey: Key Distinction

Primary Survey (ABCDE)

Secondary Survey (Head-to-Toe)

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Component	Focus	Timing
A — Airway	Patency, breathing effort, stridor	Immediate (<60 sec)
B — Breathing	Chest rise, breath sounds, SpO₂	Immediate (<60 sec)
C — Circulation	Pulse, BP, perfusion, bleeding control	Immediate (<60 sec)
D — Disability	GCS, pupil reactivity, gross motor	Immediate (<60 sec)
E — Exposure	Undress, prevent hypothermia	Immediate (<60 sec)