Human activity is causing environmental degradation, which is the deterioration of the environment through depletion of resources such as air, water and soil; the destruction of ecosystems; habitat destruction; the extinction of wildlife; and pollution.
Screening for abdominal aortic aneurysm (AAA) Research studies suggest that a routine ultrasound scan is worthwhile for all men aged 65. This is because most people with an AAA do not have symptoms. Following a routine scan, surgery can be offered to men found to have an aneurysm over 5.5 cm wide.
To begin ultrasound evaluation for abdominal aortic aneurysm, start in the transverse plane (pointing to 9 oâclock), high in the epigastrium, using acoustic gel. Use the liver as a sonic window. Identify the vertebral body (a dark rounded shape with dense shadow).