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Table 1 Questions the practitioner may ask in seeking the "5 Ds And 3 Ns" principle (though nystagmus is investigated on examination)

From: Current understanding of the relationship between cervical manipulation and stroke: what does it mean for the chiropractic profession?

  blurred vision?
  double vision?
  trouble swallowing or speaking?
Have you been experiencing: dizziness?
  fainting spells?
  trouble with walking or balance?
  numbness in your hands or feet?