Lumbar puncture. Lumbar puncture (LP), also known as a spinal tap, is a medical procedure in which a needle is inserted into the spinal canal, most commonly to collect cerebrospinal fluid (CSF) for diagnostic testing. The main reason for a lumbar puncture is to help diagnose diseases of the central nervous system, including the brain and spine.
2. ratio-the relation between things (or parts of things) with respect to their comparative quantity, magnitude, or degree; an inordinate proportion of the book is given over to quotations; a dry martini has a large proportion of gin. proportion.
This lesson explains what a quick ratio is in accounting. The quick ratio formula is outlined and examples of how a quick ratio can be used are given. A quick ratio is a calculation used to determine how liquid a company is and how easily they could pay all of their outstanding balances, if necessary. The quick ratio, often called the acid test, is the ratio that compares the amount of current assets (less inventory) to the amount of current liabilities. The higher the quick ratio, the stronger a company is financially. Let's break this down into more applicable terms.