What GCS scores define TBI severity?

Mild TBI: GCS 13-15 (concussion); Moderate TBI: GCS 9-12; Severe TBI: GCS ≤8; the motor component is the most prognostically significant subscale; GCS 3 indicates deep coma (no response in all components).

What is the GCS-T notation for intubated patients?

Intubated patients cannot produce verbal responses; document as GCS-T (e.g., GCS 8T: E2V1TM5) or list eye and motor scores with notation; never score V as 1 for intubated patients in a way that falsely reduces the reported GCS.

What is the best motor response in GCS and why is it prognostically important?

Motor response: 6=obeys commands; 5=localizes pain; 4=withdrawal from pain; 3=abnormal flexion (decorticate); 2=extension (decerebrate); 1=no response; motor score <5 correlates strongly with poor neurological outcomes in TBI.

What GCS level requires intubation for airway protection?

GCS ≤8 is the classical threshold for intubation for airway protection; however, clinical judgment considering trend (improving vs declining), airway reflexes, and patient specific factors is more important than a single GCS cutoff.

How does GCS correlate with outcomes after cardiac arrest?

Post-cardiac arrest GCS at 72 hours predicts neurological outcome; GCS motor response ≤5 at 72h post-arrest (without sedation/paralytics) predicts poor neurological outcome with ~100% specificity (part of multimodal neuroprognostication).

Glasgow Coma Scale (GCS) Calculator and Prognosis

Calculates Glasgow Coma Scale score (eye opening 1-4, verbal response 1-5, motor response 1-6) with TBI severity classification, intubation modifier (GCS-T), and outcome prediction for traumatic brain injury.

⚕ Clinical Disclaimer: These calculators are for educational and reference purposes only. Always verify results with qualified clinical judgment and current clinical guidelines. Do not use as a sole basis for medical decisions.

How to Use

Enter the values for the scenario you are assessing. Calculates Glasgow Coma Scale score (eye opening 1-4, verbal response 1-5, motor response 1-6) with TBI severity classification, intubation modifier (GCS-T), and outcome prediction for traumatic brain injury. Use the gcs calculator result to inform your calculation.

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