Which of the following rating scales is commonly used to evaluate the severity of extrapyramidal symptoms (EPS)? [Select ALL that apply]

a. SAS
b. BARS
c. AIMS
d. ESRS
e. PDS

Answer: (a,b,c,d). Extrapyramidal symptoms (EPS) are drug-induced movement disorders that include acute and tardive symptoms.

These symptoms include dystonia (continuous spasms and muscle contractions), akathisia (motor restlessness), Parkinsonism (characteristic symptoms such as rigidity, bradykinesia, and tremor), and tardive dyskinesia (irregular, jerky movements).

Since it is difficult to measure extrapyramidal symptoms, rating scales are commonly used to assess the severity of movement disorders.

The Simpson-Angus Scale (SAS), Barnes Akathisia Rating Scale (BARS), Abnormal Involuntary Movement Scale (AIMS), and Extrapyramidal Symptom Rating Scale (ESRS) are rating scales frequently used for such assessment and are not weighted for diagnostic purposes.

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