Rotor test

Check the two eye movements of the comatose patient, and rotate the head horizontally to the sides. If the patient's eyes quickly cooperate to turn to the opposite side, the test is positive. The positive test of the rotating head appeared in the shallow coma, indicating that the function of the cerebral cortex was reduced, but there was still some consciousness, and disappeared when the coma was deep. Basic Information Specialist classification: neurological examination classification: neuroelectrophysiology Applicable gender: whether men and women apply fasting: not fasting Tips: The coma patient is absolutely in bed, supine, and turned to the side to avoid vomiting into the trachea. Normal value Normal people do not have a coordinated turn to the opposite side. Clinical significance Abnormal result The positive test of the rotating head appeared in the shallow coma, indicating that the function of the cerebral cortex was reduced, but there was still some consciousness, and disappeared when the coma was deep. The following four abnormal reactions can also be seen during the rotor test: (1) Non-reflective eye movements The eyeballs are fixed and non-responsive. If barbiturate poisoning, deep anesthesia and peripheral labyrinth defects are excluded, brain stem lesions such as basilar artery obstruction and temporal lobe secondary brainstem are suggested. Damage, etc. (2) One side of the movement exists, the other side of the movement disappears suggesting unilateral brainstem lesions and pons, such as obstruction of the basilar artery branch, cerebellar hemorrhage, subdural hematoma of the posterior cranial fossa, cerebellar edema, etc. Cortical eyeballs are caused by lesion damage in the motor area. (3) One side is abducted and the other side is not adductable to suggest oculomotor palsy or internuclear ophthalmoplegia. (4) One side adducted and the other side could not be abducted to suggest abduction nerve paralysis. People who need to be checked Brain stem lesions, oculomotor palsy or internuclear ophthalmoplegia, patients with abductor nerve palsy. Positive results may be diseases: periodic oculomotor nerve paralysis matters needing attention Contraindications before the examination: the coma patient is absolutely in bed, supine position, head turned to the side to avoid vomiting into the trachea. Turning over with a low amplitude, gentle operation, the muscles are in a relaxed state, so as to avoid limb muscle contracture, in order to facilitate functional recovery. Requirements for examination: Close observation of changes in the condition: including coma, coma, body temperature, pulse, respiratory and nervous system symptoms, signs, etc. Observe the presence or absence of hemiplegia, neck stiffness and pupil changes. Inspection process Check the two eye movements of the comatose patient, and rotate the head horizontally to the sides. If the patient's eyes quickly cooperate to turn to the opposite side, the test is positive. Not suitable for the crowd A patient with a severe neck injury. Adverse reactions and risks Generally no adverse reactions.

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