2*THERE SHOULD BE RAPID PASSAGE OF THE TRACER DISTALLY WITH APPEARANCE IN THE PERITONEUM OR
CIRCULATION (eg KIDNEYS). THE SPEED WILL DEPEND ON THE CSF PRESSURE AND FLOW RATE, BUT SHOULD BE SEEN
WITHIN 1-2 HOURS*
*PROXIMAL FLOW OF TRACER MAY OR MAY NOT BE SEEN, DEPENDING ON THE RESERVOIR VALVE TYPE*
*IT IS IMPORTANT TO CHECK FOR MISINJECTION IN THE SCALP, SINCE THIS CAN PRODUCE SYSTEMIC UPTAKE*
*LUMBAR-PERITONEAL SHUNT CAN BE CHECKED BY LUMBAR SUBARACHNOID INJECTION AND FOLLOWING TRACER PASSAGE
INTO PERITONEUM*
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