cerebrospinal fluid arginine vasopressin

AVP, also known as vasopressin, vasopressin or produced by the supraoptic nucleus and paraventricular nucleus of the hypothalamus, is stored in the pituitary gland. In the central nervous system can regulate intracranial pressure and brain tissue metabolism, with anti-diuretic, vasoconstriction, strengthen memory, participate in body temperature and immune regulation and other physiological functions. Basic Information Specialist classification: examination classification: cerebrospinal fluid examination Applicable gender: whether men and women apply fasting: fasting Analysis results: Below normal: Found in primary subarachnoid hemorrhage, cerebral thrombosis, cerebral embolism, Parkinson's disease, basal ganglia disease, primary degenerative dementia, partial head disease, etc., in which primary subarachnoid hemorrhage coma It is more obvious than the sleeper. Normal value: Cerebrospinal fluid AVP (adult): 1.03-4.71ng/L Cerebrospinal fluid AVP (child): 0.8-4.4ng/L Above normal: Hydrocephalus, intracranial tumors, elevated benign intracranial pressure, 48min to 10 days after traumatic brain injury, neonatal hypoxic ischemic encephalopathy and other patients. negative: Positive: Tips: The examinee stops taking medication and maintains good eating habits. Normal value Adults 2.87 ± 1.84 ng / L, no difference in concentration between sites. Newborns 2.6 ± 1.8 ng / L, no difference in concentration between sites. Clinical significance Hydrocephalus, intracranial tumors, elevated benign intracranial pressure, 48min to 10 days after traumatic brain injury, and increased AVP content in CSF in neonates with hypoxic ischemic encephalopathy; Reduced in primary subarachnoid hemorrhage, cerebral thrombosis, cerebral embolism, Parkinson's disease, basal ganglia disease, primary degenerative dementia, partial head disease, etc., of which primary subarachnoid hemorrhage The coma is more pronounced than the sleeper. Low results may be diseases: hydrocephalus precautions Before the withdrawal: The examinee stops taking the medicine and maintains a good diet. When extracting: Maintain a relaxed state and eliminate tension and anxiety. Inspection process 1 ml of CSF was collected and immediately placed in a pre-chilled test tube containing aprotinin 1250 KIU. After centrifugation at low temperature for 5 min, the supernatant was taken in a refrigerator at -30 ° C for use. Not suitable for the crowd 1. If there is obvious papilledema or cerebral palsy, contraindications are contraindicated. 2. Patients who are in shock, exhaustion or endangered state and local skin inflammation, and lesions in the posterior cranial fossa are contraindicated. Adverse reactions and risks If the patient has symptoms such as breathing, pulse, or abnormal color during puncture, stop the operation immediately and deal with it accordingly.