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Examination: Bedside Sensory Tests
| Sensory Modality | Nerve Fiber | Instrument | Associated Sensory Receptors |
|---|---|---|---|
| Vibration | Aβ (large) | 128 Hz | Ruffini corpuscle mechanoreceptors |
| Tuning fork | |||
| Pain (pinprick) | C (small) | Neuro-tips | Nociceptors for pain and warmth |
| Pressure | Aβ, Aα (large) | 1 g and 10 g | Pacinian corpuscle |
| Monofilament | |||
| Light touch | Aβ, Aα (large) | Wisp of cotton | Meissner’s corpuscle |
| Cold | Aδ (small) | Cold tuning fork | Cold thermoreceptors |
