alpha' hemolysis

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α' he·mol·y·sis

hemolysis observed in blood agar cultures of occasional strains of pneumococci or streptococci; the zone of hemolysis about the colony is greenish caused by a partial decomposition of hemoglobin.
References in periodicals archive ?
These figures are hence identical to those reported by Howanitz et al, (1) since a hemolysis rate below 2.9% was observed in exactly 71% of laboratories in both the ESAB and College of American Pathologists (CAP) surveys.
The prevalence of a hemolysis after PDA endocarditis is unknown.
A hemolysis index of 150 arbitrary units (AU), in one published study, was equivalent to a hemoglobin concentration of 19.0 g/dl (1 g/L), within the sample [4].
Since adopting the best practices in 2009, Sarasota Memorial has successfully maintained a hemolysis rate of less than 1 percent overall across the health system - a rate well below the national average of 5-7 percent.*
According to laboratory protocol, a hemolysis level corresponding to an approximate hemoglobin concentration below 100 mg/dL is judged to be acceptable for testing.
For both assays, a hemolysis index of around 150 caused a > 20% change in cTn (Fig.
QI have been trying to find a hemolysis control for our COBAS INTEGRA and have been unsuccessful.
In conclusion, a hemolysis rate of 28.6% (4571 of 15 978) suggests that this is the best performance these units can achieve and can be considered as a new acceptable threshold for hemolyzed specimens from neonatal units in our institution.
The hemoglobin concentration was measured as a hemolysis index (HI) (calibrated in milligrams per deciliter hemoglobin) on the Abbott c8000 analyzer.
It is possible that an individual department may have a hemolysis rate comparable to the ED rate; however, total specimen numbers for each department were not captured.
It is reasonable to expect a hemolysis rate of less than 2%.
If the difference between potassium concentrations in samples with a hemolysis index of 0 and those with a hemolysis index of 1 through 10 was not significant, as assessed by using the above formula, then hemolysis was considered not to be clinically significant.