FROM MY PT SCHOOL NOTES · FOUNDATIONS OF CLINICAL SKILLS · CHAPTER 7
Which Neurological Screen Should Come First?
A focused screen is meant to identify patterns and decide what needs further examination or referral.
Start with relevant function and mental status
Purpose of the neurologic screen in the lecture: decide whether further neurologic examination or referral is needed, identify patterns of nervous-system involvement and connect body-system findings to movement and function. The FCS lecture covers mental status, cranial nerves, sensation, tone, reflexes, myotomes/dermatomes, coordination and selected signs of central or peripheral dysfunction.
Mental-status terms: level of alertness/consciousness, orientation to person/place/time, attention (selective, sustained, alternating and divided), memory and higher cognition. The lab includes simple questions and recall/attention tasks. Document what the patient actually demonstrated and any communication or sensory barriers rather than simply labeling someone “normal.”
Compare sensory and motor patterns
Somatosensory categories: superficial sensations include light touch and pain/temperature when indicated; deeper or proprioceptive testing includes joint-position awareness and motion; combined/cortical sensory tasks from the lecture include stereognosis and graphesthesia. Explain the stimulus, test in a comparable pattern, control visual input when appropriate and record asymmetry or inconsistent responses.
Sensory lab details: the original lab practices vision/visual-field observations, sharp–dull and light-touch discrimination, temperature, pressure/tactile localization, kinesthesia, joint-position sense, graphesthesia, double simultaneous stimulation, texture recognition and barognosis. It asks the student to record modality, body location, boundaries of sensory change and possible functional effects.
Foot screen from the source: the FCS monofilament handout introduces a 5.07/10 g filament to screen for loss of protective foot sensation. Demonstrate the stimulus, standardize the test sites and patient responses, avoid callus, and record where sensation was or was not detected. Use a current standardized clinical protocol rather than the handout alone for diagnosis or diabetic foot risk classification.
Record uncertainty and act on concerns
Motor/root screening: myotomes group movements influenced by spinal nerve roots; dermatomes describe sensory territories. Course associations for a quick screen include C5 shoulder abduction, C6 wrist extension, C7 elbow extension, C8 finger flexion, T1 finger abduction, L2 hip flexion, L3 knee extension, L4 ankle dorsiflexion, L5 great-toe extension and S1 ankle plantarflexion. Root contributions overlap, so a single weak movement or altered sensory region is not a definitive root diagnosis.
Reflexes featured in the lab: biceps and brachioradialis (primarily C5–C6), triceps (primarily C7), patellar/quadriceps (primarily L3–L4) and Achilles (primarily S1). Record the response and symmetry using the grading system taught in the course. The lab also reviews primitive reflexes, plantar responses, clonus and pronator drift as potential signs requiring interpretation in context.
Tone terms in the source: hypotonia, hypertonia, spasticity (classically velocity-dependent resistance to passive stretch), rigidity and dystonia. UMN and LMN patterns have characteristic features, but mixed presentations occur. The lecture discusses documenting the body part, pattern, speed dependence, asymmetry and factors that modify the finding.
Test your reasoning: Does one altered light-touch response by itself identify a specific nerve injury?
No. Distribution, consistency, additional findings and clinical context matter. An isolated screening response is not a diagnosis.
Updated-standard note
Neurologic signs such as pronator drift, altered tendon reflexes, clonus or a single sensory finding do not prove one lesion location by themselves. Interpret the overall pattern, course and functional impact; new or progressive deficits warrant appropriate escalation. Use current validated assessment instructions when applying a formal tone scale.
Apply it to a clinical situation
Scenario: A patient has reduced light-touch awareness over an area that does not clearly follow one nerve territory, and other screening results are inconsistent.
What changes your decision?
Reasoning: Record what was actually tested and the patient’s responses. Reassess technique and reliability; consider a broader neurologic and medical screen rather than identifying one nerve lesion from an isolated inconsistent result.
Common mistake: Calling a named neuropathy from one unclear screening finding. Remember: Screening identifies patterns and needs for further examination, not definitive diagnoses.
Source: my Foundations of Clinical Skills companion notes, Chapter 7, summarized from the corresponding lecture and lab materials. Original student check; not a transfer credential, diagnosis or substitute for current facility procedures.
