How To Qualify for A Service Dog. For a person to legally qualify to have a service dog, he/she must have a physical impairment (or severe psychiatric impairment) that substantially limits his/her ability to perform at least one major life activity without assistance.
A Perfusion Technologist runs the bypass machine, commonly known as the heart lung machine during open heart surgery.
Strictly speaking, the backflow valve test should be performed by a professional plumber. In most states, it is in fact illegal to not have your valve tested annually by a professional, so you should consider that before attempting to test it for yourself.