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.
Tests to diagnose MS. Magnetic resonance imaging (MRI) of the brain and spinal cord. This test is done to confirm a diagnosis of MS . Lumbar puncture (sometimes called a spinal tap). This test may be done to evaluate cerebrospinal fluid. Most people with MS have abnormal results on this test. Evoked potential testing.