What is the Nihss motor arm score?

### What is the NIHSS motor arm score?

The NIHSS motor arm score is a component of the National Institutes of Health Stroke Scale (NIHSS), which is used to assess the severity of a stroke in patients. The motor arm score specifically evaluates arm strength, coordination, and movement in stroke patients.

### How is the NIHSS motor arm score assessed?

The NIHSS motor arm score is assessed by asking the patient to perform specific movements with both arms. The patient is asked to hold both arms outstretched in front of them with palms facing down and fingers extended. The examiner then evaluates the patient's ability to maintain this position and notes any drift or weakness in one or both arms.

Next, the patient is asked to close their eyes and hold both arms outstretched in front of them with palms facing up and fingers extended. The examiner again evaluates the patient's ability to maintain this position and notes any drift or weakness in one or both arms.

Finally, the patient is asked to rapidly tap one hand on the other hand as quickly as possible. The examiner observes the speed, rhythm, and coordination of this movement in both arms.

Each component of the NIHSS motor arm score is scored on a scale of 0 to 4, with 0 indicating normal arm function and 4 indicating severe impairment. The scores from each component are summed to give a total motor arm score, which ranges from 0 to 12. A higher score indicates greater impairment of arm function.

The NIHSS motor arm score is an important tool in assessing stroke severity and guiding treatment decisions in stroke patients. It helps healthcare providers determine the appropriate course of action to improve outcomes and reduce the risk of complications following a stroke.

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