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A red blood cell in a hypotonic solution, causing water to move into the cell A red blood cell in a hypertonic solution, causing water to move out of the cell. Hemolysis or haemolysis (/ h iː ˈ m ɒ l ɪ s ɪ s /), [1] also known by several other names, is the rupturing of red blood cells (erythrocytes) and the release of their contents into surrounding fluid (e.g. blood plasma).
There is not enough specimen for the lab tests ordered to be performed. [ 1 ] In the case of Vacutainers or other tubes with pre-added anticoagulant, the amount of blood invacuated into the tube at the time of phlebotomy was insufficient to attain the correct blood:anticoagulant ratio.
If an organism does not induce hemolysis, the agar under and around the colony is unchanged and the organism is called non-hemolytic or said to display gamma-hemolysis (γ-hemolysis). Enterococcus faecalis (formerly called "Group D Strep"), Staphylococcus saprophyticus , and Staphylococcus epidermidis display gamma-hemolysis.
Symptoms of hemolytic anemia include those that can occur in all anemias as well as the specific consequences of hemolysis. All anemias can cause fatigue, shortness of breath, decreased ability to exercise when severe. Symptoms specifically related to hemolysis include jaundice and dark colored urine due to the presence of hemoglobin ...
If clumping is seen, the Coombs test is positive; if not, the Coombs test is negative. [ 3 ] Common clinical uses of the Coombs test include the preparation of blood for transfusion in cross-matching , atypical antibodies in the blood plasma of pregnant women as part of antenatal care , and detection of antibodies for the diagnosis of immune ...
In beta-hemolysis, the organism digests the blood completely, leaving a clear area around each colony. [1]: 165–6 Organisms that do not produce hemolysis are referred to as gamma-hemolytic. [2]: 500 Clostridium perfringens, which causes gas gangrene, is noteworthy for producing a "double zone" of both complete and incomplete hemolysis.
If you've been having trouble with any of the connections or words in Monday's puzzle, you're not alone and these hints should definitely help you out. Plus, I'll reveal the answers further down ...
The assay is used to assess the potential for intravascular hemolysis when incompatible cellular blood products are transfused to the anemic patient. When donor cells possess substances that are not produced by the recipient, the recipient's immune system produces antibodies against the substance; these are called alloantibodies.