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.
In some cases additional studies should be ordered, such as a CT scan, or imaging of other parts of the body to determine if a primary tumor may be present. Some patients may require a lumbar puncture (spinal tap) to evaluate the spinal fluid, which can provide a clue to the cause of headaches. If a tumor is present, the patient will be evaluated by both a neurosurgeon and often an oncologist.