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The Ham test is a blood test used in the diagnosis of paroxysmal nocturnal hemoglobinuria (PNH). Patient red blood cells (RBCs) are placed in mild acid; a positive result (increased RBC fragility) indicates PNH or congenital dyserythropoietic anemia. [1] [2] This is now an obsolete test for diagnosing PNH due to its low sensitivity and ...
The sucrose hemolysis test was developed in the 1960s. [2] Hartmann and Jenkins first described the test in 1966. [3] [4] The test was devised as a superior screen for PNH compared to the Ham's acid hemolysis test (HT) that was developed in the 1930s. [2] For decades, these two tests were the primary methods of diagnosing PNH. [2]
The laboratory test results will reveal evaluations like anisocytosis, nucleated red blood cells, poikilocytosis, polychromasia, spherocytosis, and erythrophagocytosis by neutrophils. [ 21 ] [ 22 ] Blood typing is supposed to be performed with every patient even if their anemia is mild since the hemoglobin can fall all of a sudden and require ...
Peanut butter test; Perfusion CT; Perfusion scanning; Peritoneal equilibration test; Phonocardiogram; Phonomyography; Point-of-care genetic testing; Point-of-care testing; Poppy seed test; Porges–Meier reaction; Postage stamp test; Postcoital test; Prausnitz–Küstner test; Predictive value of tests; Preferential hyperacuity perimetry ...
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A test method is a method for a test in science or engineering, such as a physical test, chemical test, or statistical test. It is a definitive procedure that produces a test result. [ 1 ] In order to ensure accurate and relevant test results, a test method should be "explicit, unambiguous, and experimentally feasible.", [ 2 ] as well as ...
A medical test is a medical procedure performed to detect, diagnose, or monitor diseases, disease processes, susceptibility, or to determine a course of treatment. The tests are classified by speciality field, conveying in which ward of a hospital or by which specialist doctor these tests are usually performed.
Laboratory quality control is designed to detect, reduce, and correct deficiencies in a laboratory's internal analytical process prior to the release of patient results, in order to improve the quality of the results reported by the laboratory.