Mindblown: a blog about philosophy.
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Enhanced external counterpulsation
A noninvasive treatment for angina pectoris and congestive heart failure involving the use of inflatable cuffs on the patient’s legs to improve myocardial perfusion and increase cardiac output. Cuffs placed on the calves, lower thighs, and upper thighs are inflated sequentially during diastole when coronary artery filling occurs. The inflated cuffs increase diastolic central aortic…
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Counterpressure instrument
An instrument that provides counter-retraction to offset that exerted by the exit of a needle.
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Counteropening
A second opening, as in an abscess that is not draining satisfactorily from the first incision.
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Counterincision
A second incision made to promote drainage or relieve the stress on a wound as it is sutured.
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Counterimmunoelectrophoresis
The process in which antigens and antibodies are placed in separate wells and an electric current is passed through the diffusion medium. .Antigens migrate to the anode and antibodies to the cathode. If the antigen and antibody correspond to each other, they will precipitate and form a precipitin band or line upon meeting in the…
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Countercurrent exchanger
The exchange of chemicals between two streams of fluid flowing in opposite directions on either side of a permeable membrane. This permits the fluid leaving one side of the membrane to be similar to the composition of the fluid entering the other end of the other stream.
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Particle counter
An electronic device for counting and differentiating cells, platelets, and small particles according to their volume.
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Impedance counter
A blood cell counter that uses cell membrane electrical impedance to determine the volume of cells in a solution.
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Colony counter
An apparatus for counting bacterial colonies in a culture plate.
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Total lymphocyte count
The number of lymphocytes in a specimen of blood. The count may be increased in clonal diseases such as chronic lymphocytic leukemia or decreased in diseases such as AIDS. In AIDS, decreases in the total lymphocyte count usually reflect a marked decline in the number of helper T4 cells.
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