Unifying Concepts

FOUR Score for Comatose Patients

The Full Outline of UnResponsiveness (FOUR) score provides greater neurological detail than the Glasgow Coma Scale (GCS), recognizes a locked-in syndrome, and is superior to the GCS due to the availability of brainstem reflexes, breathing patterns, and the ability to recognize different stages of herniation.

Eye response

4 = eyelids open or opened, tracking, or blinking to command

3 = eyelids open but not tracking

2 = eyelids closed but open to loud voice
1 = eyelids closed but open to pain

0 = eyelids remain closed with pain

Motor response

4 = thumbs-up, fist, or peace sign

3 = localizing to pain

2 = flexion response to pain

1 = extension response to pain

0 = no response to pain or generalized myoclonus status

Brainstem reflexes
4 = pupil and corneal reflexes present
3 = one pupil wide and fixed
2 = pupil or corneal reflexes absent
1 = pupil and corneal reflexes absent
0 = absent pupil, corneal, and cough reflex

4 = not intubated, regular breathing pattern
3 = not intubated, Cheyne–Stokes breathing pattern
2 = not intubated, irregular breathing
1 = breathes above ventilator rate
0 = breathes at ventilator rate or apnea



  1. Wijdicks EF, Bamlet WR, Maramattom BV, Manno EM, McClelland RL. Validation of a new coma scale: The FOUR score. Ann Neurol. 2005 Oct;58(4):585-93. [Medline]
  2. Wijdicks EF. Clinical Scales for Comatose Patients: The Glasgow Coma Scale in Historical Context and the New FOUR Score. Rev Neurol Dis. 2006 Fall;3(3):109-17. [Medline]


Created: Jan 29, 2007

  • Language:

  • Users Online

  • Medical Disclaimer

    El contenido de este sitio web son solo para fines informativos y no reemplazan la consulta con un profesional médico.
  • Recent Posts

  • Categories

  • Copyright by