A patient with head injury opens eyes of painful stimulus, used inappropriate words, and localizes pain. What is his GCS score?

**Core Concept**
The Glascow Coma Scale (GCS) is a neurological scale used to assess the level of consciousness in a patient. It evaluates three aspects: eye opening, verbal response, and motor response. The GCS is a crucial tool in assessing the severity of head injuries and guiding treatment decisions.

**Why the Correct Answer is Right**
The patient's eye opening response indicates a score of 2 (to painful stimulus), verbal response is 3 (used inappropriate words), and motor response is 5 (localizes pain). To calculate the GCS score, the scores for each category are added together. The correct answer can be calculated as follows: 2 (eye opening) + 3 (verbal response) + 5 (motor response) = 10.

**Why Each Wrong Option is Incorrect**
* **Option A:** This option is incorrect because the calculation for the GCS score is not provided. Without the correct calculation, it's impossible to determine the correct GCS score.
* **Option B:** This option is incorrect because the scores for eye opening, verbal response, and motor response are not provided. Without these scores, it's impossible to calculate the correct GCS score.
* **Option C:** This option is incorrect because the patient's verbal response is "used inappropriate words," which corresponds to a score of 3, not 4.
* **Option D:** This option is incorrect because the patient's motor response is "localizes pain," which corresponds to a score of 5, not 6.

**Clinical Pearl / High-Yield Fact**
When assessing a patient's GCS score, it's essential to use the correct scoring system and to evaluate each component carefully. The GCS score can change over time, so it's crucial to reassess the patient regularly to monitor changes in their level of consciousness.

**Correct Answer:** 10. The patient's GCS score is 10.