Um, Letâs Rethink That Salute (1930s) Again, in his book To the Flag: The Unlikely History of the Pledge of Allegiance, Richard J. Ellis explains that by the mid-1930s, Americans had begun to notice eerie similarities between the Bellamy salute and the âHeil Hitlerâ salute.
A lumbar puncture may be used to collect a sample of cerebrospinal fluid in order to detect the presence of certain types of cancer or infection. Lumbar punctures may also be used to inject medications, such as spinal anesthesia or chemotherapy drugs.
You are here. Prepare for a Lumbar Puncture. A lumbar puncture is a diagnostic and at times therapeutic procedure that is performed in order to collect a sample of cerebrospinal fluid for laboratory analysis, or rarely to relieve increased intracranial pressure. X-Rays pictures are used to image the spine.