TPO Roof Replaces Leaking Inverted Roof-Membrane Assembly System. The problematic roof was an inverted roof-membrane assembly (IRMA), which consisted of a built-up membrane installed over a structural concrete slab and topped by insulation.
Deep vein thrombosis (DVT) is a medical condition that occurs when a blood clot forms in a deep vein. These clots usually develop in the lower leg, thigh, or pelvis, but they can also occur in the arm.
Critical Care Trauma Centre. Deep vein thrombosis (often called DVT) is a common and potentially life-threatening complication that can affect any immobilized patient. Thrombosis means blood clot. A DVT is a blood clot in the deep veins of the leg or groin. While these can be painful and cause swelling in the leg below the clot, the most serious complication of DVT is a pulmonary embolism. Embolus means to travel.