Hyperreflexia is the presence of hyperactive stretch reflexes of the muscles.
Comment:
Reflexes are graded according to the following scale: 0=absent; 1=present but diminished; 2=normoactive; 3=exaggerated; and 4=clonus. Clonus is always abnormal, and a grade 3 reflex may be abnormal if it is asymmetric or if it was previously grade 2 or less.
Synonyms:
exact_synonym:
Increased deep tendon reflexes; Increased reflexes