BSL: 1. Biosafety level, as in a BSL-4 laboratory. 2.Biohazard safety level. 3.Blood sugar level. 4.British Sign Language.
BSL-1: Biosafety level 1. The lowest level of biosafety, a level that applies to agents that do not ordinarily cause human disease.
Bypass, cardiopulmonary: A bypass of the heart and lungs as, for example, in open heart surgery. In this procedure, blood returning to the heart is diverted through a heart-lung machine (a pump-oxygenator) before being returned to the arterial circulation.
Bypass: An operation in which a new pathway is created for the transport of substances in the body.
Bx: Abbreviation for biopsy, the removal of a sample of tissue for examination or other study. Biopsies are most frequently studied by use of a microscope to check for possible abnormalities such as inflammation or cancer. A biopsy may also be used for specialized purposes such as to start cell cultures to analyze a genetic […]
Butyric acid: An acid that has four carbons in it. The formula for butyric acid is: CH3-CH2-CH2-COOH.
Butterfly rash: A red, flat facial rash over the bridge of the nose. Many patients with systemic lupus erythematosus (SLE) develop this characteristic rash. Because of its shape, it is frequently referred to as the “butterfly rash” of lupus. The butterfly rash of lupus is typically painless and does not itch. Along with inflammation in […]
Butterbur: The plants commonly referred to as Butterbur are found in the daisy family Asteraceae in the genus Petasites, species P. vulgaris or P. hybridus. The plants are found in the temperate zone of the Northern Hemisphere and prefer moist environments such as riverbanks and marshes. The rhizome (root) of the plant has been used […]
Bursopathy: Disease involving a bursa, a closed fluid-filled sac that supplies a gliding surface to reduce friction between tissues of the body. Bursopathy includes, for instance, inflammation of a bursa (bursitis).
Buruli ulcer: A disorder caused by infection with a member of the family of bacteria that causes tuberculosis and leprosy — the bacterium Mycobacterium ulcerans — that starts as a painless swelling in the skin, most commonly in the limbs (the arms and legs) and causes severely deforming ulcers. Complications include loss of organs such […]