منابع مشابه
Retention of platelets by glass bead filters.
Whole blood was passed through glass bead filters and the retention of platelets studied under various experimental conditions. Platelet retention was similar over a wide range of blood flow rates; however, it was decreased at fast rates of flow. Platelet retention was not influenced by the haematocrit value of the blood over a wide range. Retention in filters containing siliconized beads was s...
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An 85yearold woman presented with platonychia and koilonychia (spoonshaped nails) of the fingers and toes which were present since her early childhood (Figure 1A and B). On physical examination, all her fingernails were spoonshaped with rough and darkened distal edges. Her toenails were thin and flat, except for the nails of the big toes, which exhibited the same abnormalities as the fingernail...
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A 53-year-old woman who had been taking aspirin to prevent ischemic stroke visited our hospital due to general malaise. A physical examinations revealed pallor of the conjunctiva and koilonychia (spoon-shaped nails) (Picture A), although she had not exhibited anemia or koilonychia three months earlier. Laboratory studies demonstrated severe microcytic anemia (hemoglobin, 5.9 g/dL; mean corpuscu...
متن کاملComparison of platelet glass bead retention techniques in patients with clinical bleeding disorders.
Platelet glass bead retention by the Salzman and infusion pump techniques were compared in 36 control individuals, 10 patients with von Willebrand's syndrome and four patients with thrombocytopathies. No significant differences between the results of the two assays were observed. Eleven percent or less of the control individuals had diminished platelet glass bead retention. The mean percentage ...
متن کاملPlatelet retention in glass bead columns: adhesion to glass and subsequent platelet-platelet interactions.
In normal heparinized blood, the retention of platelets in glass bead columns was low in the first 1 or 2 ml, increasing to more than 80% by the 4th or 5th ml. Prior flushing of the columns with platelet-poor plasma or saline lowered retention in all 5 ml. Additional studies were carried out with a two-stage procedure in which a sample of blood (A) was pumped through a column, immediately flush...
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ژورنال
عنوان ژورنال: Indian Journal of Dermatology, Venereology and Leprology
سال: 2019
ISSN: 0378-6323
DOI: 10.4103/ijdvl.ijdvl_350_18