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.
DVT. 1  D-Dimer blood test- indication of blood clotting times. 2  Duplex Ultrasound- Ultrasound used to visually see clots in the legs. 3  Venogram- gold standard for DVTdiagnosis, contrast dye is injected in a vein and X-Ray pictures are taken to show clots inside the veins.