143 results found
Medical tests
… Doppler Ultrasound On this page: Test Overview Why It Is Done How To Prepare How It Is … that can quickly check the extent of blood vessel damage or disease. Duplex Doppler. This test uses standard … the Doppler sounds into colours that are overlaid on the image of the blood vessel. These colours show the speed and …
Medical tests
… Positron Emission Tomography (PET) On this page: Overview Why It Is Done How To Prepare How It Is Done … and neck, brain, lung, colon, or prostate. In its early stages, cancer may show up more clearly on a PET scan than on … not clear or when a person has dementia symptoms at a young age (usually younger than 65). footnote 1 This is called …
Medical tests
… Spinal Tap (Lumbar Puncture) On this page: Test Overview Why It Is Done How To Prepare How It Is … the brain or spinal cord (such as subarachnoid hemorrhage ). Diagnose certain diseases of the brain and spinal … is taken out and the puncture site is cleaned and bandaged. Following a spinal tap, you may be told to lie flat in …
