01/01/2026
Neurologic Examination of the upper and lower extremities 🧠☤
A neurologic exam of the upper and lower extremities assesses motor function (strength, tone, coordination), sensation (light touch, pain, vibration, proprioception), and reflexes, using observation (gait, posture, muscle wasting, fasciculations) and specific maneuvers like pronator drift (upper limb) or Romberg's test (lower limb/balance) to check for upper (UMN) or lower (LMN) motor neuron issues, helping localize neurological lesions systemhyporeflexia .
🔷 Upper Extremity Examination:
1️⃣ Inspection: Look for muscle wasting, asymmetry, abnormal posture (e.g., clawing), or involuntary movements (tremors, fasciculations).
2️⃣ Tone: Ask the patient to relax; move their arm passively at the shoulder, elbow, and wrist, feeling for rigidity (UMN) or floppiness (LMN).
3️⃣ Power: Test strength (e.g., grip, shoulder abduction) against resistance, comparing sides.
4️⃣ Reflexes: Test deep tendon reflexes (biceps, triceps, supinator/brachioradialis) with a hammer, checking for hypo/hyperreflexia.
5️⃣ Sensation: Test light touch, sharp/dull (pain), vibration (tuning fork), and proprioception (joint position sense) across dermatomes.
6️⃣ Coordination: Finger-to-nose test, rapid alternating movements (e.g., hand flips).
7️⃣ Special Tests: Pronator Drift: Patient holds arms out, palms up; look for involuntary pronation (UMN sign).
🔷 Lower Extremity Examination & Gait :
1️⃣ Gait & Observation: Observe walking (normal, heel walking, toe walking, tandem walk) for foot-drop, asymmetry, and arm swing. Check for posture.
2️⃣ Tone: Move legs passively at the hip, knee, and ankle, checking for spasticity or rigidity.
3️⃣ Power: Test strength (hip flexion, knee extension/flexion, ankle dorsiflexion/plantarflexion) against resistance.
4️⃣ Reflexes: Test deep tendon reflexes (knee jerk, ankle jerk) with a hammer, also checking for clonus if indicated.
5️⃣ Sensation: Test light touch, pain, vibration, and proprioception on the legs and feet.
6️⃣ Coordination: Finger-to-nose (if patient can sit), heel-to-shin.
7️⃣ Special Tests: Romberg's Test: Stand with feet together, eyes closed; assess balance (positive in proprioceptive/vestibular issues).
🔷 Key Findings to Note:
💠 UMN Lesions: Spasticity, hyperreflexia, positive Babinski sign (not detailed but key), pronator drift.
💠 LMN Lesions: Muscle wasting, fasciculations, hypotonia, hyporeflexia.