NEET PG DENTAL EXAM

Detailed explanation-1: -The total volume of CSF in the adult is approximately 140 mL. CSF is produced at a rate of 0.2–0.7 mL per minute or 500–700 mL per day.

Detailed explanation-2: -In normal adults, the total CSF volume is 90–150 mL. Eighty percent of the CSF is contained in the arachnoid space in the cranium and spinal cord, where a small amount can be extracted for examination, most commonly through a lumbar puncture. CSF pressure is measured by a manometer.

Detailed explanation-3: -In the setting of normal serum glucose levels (70–120 mg/dl), the glucose concentrations in CSF of otherwise healthy adults will range from 45 to 80 mg/dl (i.e., approximately two-thirds of serum levels).