• Disease

    Deep venous thrombosis

    Deep venous thrombosis (DVT) affects mainly the veins in the lower leg and the thigh. It involves the formation of a clot (thrombus) in the larger veins of the area.

    Deep venous thrombosis is a blood clot that forms in a vein deep inside a part of the body. It mainly affects the large veins in the lower leg and thigh.

  • Test


    A "clean-catch" urine sample is performed by collecting the sample of urine in midstream. Men or boys should wipe clean the head of the penis. Women or girls need to wash the area between the lips of the vagina with soapy water and rinse well. A small amount of urine should initially fall into the toilet bowl before it is collected (this clears the urethra of contaminants). Then, in a clean container, catch about 1 to 2 ounces of urine and remove the container from the urine stream. The container is then given to the health care provider.

    Delta-ALA is a protein (amino acid) produced by the liver. A test can be done to measure the amount of this substance in the urine.

  • Special Topic


    A breast lump is surgically excised and then tested for malignancy.

    Dissect means to cut or separate tissues. Doctors dissect tissue during surgery. Most of the time, this is done to remove a part of the body that is thought...

  • Test

    Donath-Landsteiner test

    The Donath-Landsteiner test is a blood test to detect harmful antibodies related to a rare disorder called paroxysmal cold hemoglobinuria. The antibodies...

  • Disease

    Drug-induced immune hemolytic anemia

    Antigens are large molecules (usually proteins) on the surface of cells, viruses, fungi, bacteria, and some non-living substances such as toxins, chemicals, drugs, and foreign particles. The immune system recognizes antigens and produces antibodies that destroy substances containing antigens.

    Drug-induced immune hemolytic anemia is a blood disorder that occurs when a medicine triggers the body’s defense (immune) system to attack its own red blood...

  • Test

    Duplex ultrasound

    The duplex/doppler ultrasound test examines the blood flow in the major arteries and veins in the arms and legs.  The test uses duplex ultrasonagraphy to visualize the blood flow and doppler ultrasonagraphy provides an audio means to hear the blood flow.  This test is done as an alternative to arteriography and venography and may help diagnose abnormalities in an artery or vein.

    A duplex ultrasound is a test to see how blood moves through your arteries and veins. Related topics include: Carotid duplex ultrasound Doppler ultrasound...