NurseCalc → Glasgow Coma Scale

Glasgow Coma Scale (GCS)

Assess level of consciousness across three domains: eye opening, verbal response, and motor response. Score ranges from 3 (deep coma) to 15 (fully alert).

Eye Opening

Best observed response

4Spontaneous opening 3Opens to voice / verbal command 2Opens to pain 1No eye opening

Verbal Response

Best verbal response

5Oriented — knows name, place, date 4Confused — converses but disoriented 3Inappropriate words — no conversation 2Incomprehensible sounds only 1No verbal response

Motor Response

Best motor response

6Obeys commands 5Localizes to pain 4Withdrawal from pain 3Abnormal flexion (decorticate) 2Extension response (decerebrate) 1No motor response

GCS Total

E4 V5 M6

3815

⚠️ GCS is a clinical assessment tool. Always perform assessment in person and document in the medical record. Scores should be interpreted alongside full neurological examination.

GCS Classification

13–15 — Mild TBI / Alert

Minor neurological impairment. Close monitoring and reassessment.

9–12 — Moderate TBI

Significant neurological impairment. CT imaging, ICU consideration.

3–8 — Severe TBI / Coma

GCS ≤ 8 = coma. Consider intubation for airway protection. Urgent neurosurgery consult.

Always document as E + V + M (e.g., E3V4M5 = GCS 12) to ensure clarity in handoffs.

Other Nursing Calculators

APGAR Score

Body Surface Area

Pediatric Dose

Drug Dosage

BMI