Cerebrospinal fluid dynamics test

Cerebrospinal fluid dynamics tests include neck compression test, abdominal compression test, and unilateral jugular vein compression test. Basic Information Specialist classification: growth and development check classification: cerebrospinal fluid examination Applicable gender: whether men and women apply fasting: not fasting Analysis results: Below normal: Normal value: no Above normal: negative: The necking test was negative. In the abdominal test, the abdomen was deeply pressed by the palm of the hand, and the pressure of the cerebrospinal fluid rapidly increased. After the pressure was released, the pressure rapidly decreased. Positive: 1. In the neck test, there is a spinal canal obstruction above the puncture site. When the neck is pressed, the cerebrospinal fluid pressure does not rise (completely obstructed) or rises and falls slowly (partially obstructed). This is called the neck test. 2. In the unilateral jugular vein test, there was no change in pressure when one side of the jugular vein was compressed, and the one-sided necking test was positive. Tips: Patients with cerebral hemorrhage, cerebral hemorrhage are not suitable for this examination. Normal value The necking test was negative. In the abdominal test, the abdomen was deeply pressed by the palm of the hand, and the pressure of the cerebrospinal fluid rapidly increased. After the pressure was released, the pressure rapidly decreased. The unilateral jugular vein compression test was negative. Clinical significance Abnormal results: 1. In the neck test, there is a spinal canal obstruction above the puncture site. When the neck is pressed, the cerebrospinal fluid pressure does not rise (completely obstructed) or rises and falls slowly (partially obstructed). This is called the neck test. 2. In the unilateral jugular vein test, there was no change in pressure when one side of the jugular vein was compressed, and the one-sided necking test was positive. Need to check the crowd: spine lesions. Precautions Taboo before inspection: None. Requirements for inspection: first do the abdominal test and then do the neck test. Inspection process (1) Pressure neck test: The jugular vein was pressed with a finger, and the spinal canal was patency. After the neck was pressed, the pressure of the cerebrospinal fluid rapidly rose to 1.96 to 2.94 kPa (200 to 300 mm H2O). After the neck was released, the pressure rapidly dropped to the initial pressure level. (2) Abdominal test: A compression test should be performed before the neck test to confirm that the needle is indeed in the subarachnoid space. Deep pressure on the abdomen with the palm of your hand, the pressure of the cerebrospinal fluid rises rapidly, and after the pressure is released, the pressure drops rapidly. (C) unilateral jugular vein compression test: Compress the jugular veins on both sides. Not suitable for the crowd Inappropriate people: patients with cranial hypertension and cerebral hemorrhage. Adverse reactions and risks No obvious complications and harms.