(Be ready to show students the 19-slide How Does an Ultrasonic Sensor Work? Presentation, a Microsoft Â® PowerPoint Â® file, to teach the lesson. In advance, make copies of the Ultrasonic Sensor Pre-Quiz and Ultrasonic Sensor Post-Quiz, one each per student, provided as attachments and slides.
Progression. Testicular cancer (specifically, germ cell tumors) is an aggressive cancer, doubling in size every 10 to 30 days. If not treated, testicular cancer can spread via the lymphatic pathways.The lymph glands around the aorta and the vena cava at the level of the kidneys are the first to be involved.n advanced cases it can spread to the lungs, liver, brain, bone, kidney, adrenal gland, and spleen. Without treatment, a testicular cancer patient will die on average 2-3 years from time of diagnosis.
Mononucleosis is usually diagnosed by blood tests. At Student Health Services, results are usually available within 24 hours or less. Up to 15% of mono patients will initially have negative blood tests, so it may be necessary to repeat the test in one to two weeks. Mono is spread by saliva, and the virus is usually present in a patientâs saliva for about 30-45 days after onset of symptoms. Although mono is often called the kissing disease (and certainly kissing is an effective way to spread it!), very few patients have any idea how they got the infection.