Before We Start
Why this sequence covers all 12, where GLOVES covered 7
The GLOVES screen (covered earlier in this section) is a fast, focused tool for the highest-yield acute-care nerves. This 5-Step sequence goes further — it's built to touch all 12 cranial nerves in a single, efficient pass, useful when a broader screen is needed (a new patient admission, an unexplained neurological complaint, or a baseline assessment before a procedure) but a full formal 12-nerve exam isn't practical given time constraints.
💡 The Organizing Principle: Group by Body Region, Not by Number
Rather than testing CN I, then II, then III in strict numerical order (which requires jumping between very different body regions repeatedly), this sequence groups nerves by anatomical region — smell, then eyes, then face, then throat — so the physical assessment flows naturally from one step to the next without unnecessary repositioning.
Mnemonic
The 5 steps, region by region
Step 1 — Smell
CN I (Olfactory)
A brief smell test — coffee, alcohol swab, or similar familiar scent — screening CN I. As covered in the dedicated CN I lesson, this step carries outsized importance in a trauma context due to its connection to skull base fracture risk.
Step 2 — Vision + Pupil Reaction
CN II and CN III
Basic visual screening (can the patient see fingers in each quadrant?) combined with the PERRL pupil check — covering CN II's sensory role and CN III's motor role in the pupillary light reflex together.
Step 3 — H-Pattern Eye Tracking
CN III, IV, and VI
Following a finger through an H-pattern, screening all three eye-movement nerves together — applying the LR6SO4 rule to localize any specific deficit found during this step.
💊 Combining Steps 2 and 3 covers five of the twelve nerves (II, III, IV, VI, plus III again for pupils) in roughly 30 seconds of assessment — this is where the biggest time savings in the whole sequence comes from.
Step 4 — Facial Movement and Sensation
CN V (sensation) and CN VII (motor)
Light touch testing across the three trigeminal branches, combined with facial movement testing (smile, raise eyebrows, close eyes tightly) — applying the forehead-sparing rule from the CN VII Central vs. Peripheral lesson if any asymmetry is found.
Step 5 — Hearing, Gag, Tongue, Shoulder
CN VIII, IX/X, XI, and XII
The final step bundles the remaining four regions: a whisper or finger-rub hearing test (VIII), a gag reflex check (IX/X), tongue protrusion (XII), and a shoulder shrug against resistance (XI) — completing the full 12-nerve screen.
🏥 Clinical Scenario — Running the Full Sequence on a New Admission
A patient is admitted with a vague complaint of "feeling off" and mild new clumsiness. No specific neurological diagnosis has been made yet.
Choose the Right Tool
Because the complaint is vague and non-specific — rather than a clear acute stroke or head trauma presentation — a broader 12-nerve screen is more appropriate here than the narrower, acute-focused GLOVES screen. The 5-Step sequence provides that broader coverage while still remaining fast enough for routine practice.
Run the Full Sequence
The nurse works through all 5 steps in under two minutes: smell intact, vision and pupils normal, eye tracking smooth, facial sensation and movement symmetric, hearing intact, gag present, tongue midline, shoulder shrug symmetric — except for mild weakness noted on the left shoulder shrug. This single unexpected finding, caught specifically because the broader screen included CN XI, becomes the focus of further follow-up assessment that a narrower screen might have missed entirely.
Document and Follow Up
The nurse documents the specific, isolated finding and reports it, along with the otherwise-normal complete screen, to guide the next steps in the diagnostic workup. A complete baseline screen, even when most findings are normal, provides real clinical value by clearly isolating the one abnormal finding that needs attention.
📌 NCLEX Application
Questions about this sequence test both technique and clinical judgment about when to use it:
Choosing the right screen: "A patient presents with a vague, non-acute neurological complaint. Which type of cranial nerve screen is most appropriate?" → A complete 12-nerve screen (like the 5-Step sequence), rather than a narrower acute-focused screen like GLOVES.
Sequence logic: "Why are cranial nerve checks often grouped by body region rather than performed in strict numerical order?" → Grouping by region allows the physical assessment to flow naturally without unnecessary repositioning, making the full screen faster and more practical to complete.
⚠️ The Trap — Using a Narrow Screen When a Broader One Is Actually Needed
GLOVES and the 5-Step sequence exist for different clinical situations. Defaulting to the faster, narrower GLOVES screen out of habit — even in a situation with a vague, non-specific complaint that would benefit from broader coverage — risks missing findings in the nerves GLOVES doesn't cover (I, VII, VIII, XI, XII).
The safeguard: Match the screen to the clinical situation — GLOVES for acute, focused concerns (stroke, head trauma, post-op neuro checks); the full 5-Step sequence for broader, less-specific presentations where any of the 12 nerves could plausibly be involved.
✓ Quick Self-Test
Answer before checking:
1. How many cranial nerves does the 5-Step sequence cover, compared to GLOVES?
2. Why are the nerves grouped by body region rather than strict numerical order?
3. Which four nerves are bundled together in Step 5?
4. When would the 5-Step sequence be more appropriate than GLOVES?
Answers:
1. All 12, compared to GLOVES' 7 (II, III, IV, V, VI, IX, X).
2. Grouping by region lets the physical assessment flow naturally from one step to the next without repositioning, making the full screen faster to complete.
3. CN VIII (hearing), CN IX/X (gag), CN XI (shoulder shrug), and CN XII (tongue).
4. When the clinical picture is vague or non-specific, rather than a clear acute stroke, head trauma, or post-op neuro-focused situation where GLOVES' narrower coverage is sufficient.
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