percentile, 21 of these infants were well-nourished 10 suffered from first-degree malnutrition and 3 from seconddegree malnutrition.Using the classification of malnutrition of Gomez et al,13 apolied to the Boston 50th MATERIAL AND MElHODS The Figlu test was perfonned on 34 asymptomatic non-White infants attending welfare clinics, day creches or admitted to the surgical wards for minor surgical procedures. At the commencement of the study, as the publications on this test in infancy were not available to us, a load of 2-5 G of histidine was decided upon by inference from the adult dose of 15 G.12 Since this load could well have been excessive, especially in infants where enzyme function might be suspect, it was considered necessary to evaluate the test in asymptomatic infants. The histidine-loading (Figlu) test was used as one parameter in the assessment of folic-acid deficiency. Within 6 years, reports were readily available on the value of the Figlu test in the assessment of folic-acid deficiency,s.9 but little had been written concerning its use following histidine loading in infancy.lo, 11 In December 1962 we investigated the haemopoietic deficiencies existing in non-White infants with gastroenteritis. To improve the sensitivity of the test, Luhby et af.2 suggested the use of histidine loading. Memorial Children's Hospital and University of Cape Town In 1956 Broquist l first used the formiminoglutamic-acid (Figlu) test in clinical medicine as a parameter of folic acid deficiency. (CAPE TOWN) Departments of Child Health and Pathology, Red Cross War. AN ASSESSMENT OF THE HISTIDINE-LOADING (FIGLU) TEST IN INFANCY R. Meyer, van die departement Fisiologie, vir hulp en aan die departemente Hematologie en Biochemie, van die Instituut van Patologie van die Universiteit van Pretoria, vir hulp in verband met die nodige bloedondersoeke. Pretorius, van die departement Fisiese Chemie van die Universiteit van Pretoria, vir raad en apparaat aan prof. vir finansiele hulp in verband met die werk aan prof. Hiermee word dank betuig aan die W.N.N.R. Die betekenis van die bevindings ten opsigte van die viskositeit van die bloed is bespreek en die moontlike praktiese toepassings daarvan oorweeg. OPSOMMING Die uitwerking van verkoeling op die vloeikenmerke van bloed en verwante vloeistowwe is met behulp van 'n Ostwald viskosimeter ondersoek. Op hierdie basis wil dit tog voorkom dat pogings om die nadelige uitwerking van verkoeling op die vloeikenmerke van bloed uit te skakel, lonend mag wees. die kennis van die reologie van bloed, bly daar nog sovee! faktore oar wat 'n invloed kan uitoefen en sovee! ander waarvan die uitwerking nog onbekend is, dat hierdie kennis nie matematies sekuur nie, maar alleen by benadering toegepas kan word. is en in die haarvate, deur saamklomping van rooi selie. Die viskositeit van bloed word deur verskeie faktore beinvloed, waarvan die volgende die beiangrikste is: sy selinhoud of hematokriet, en tot 'n mindere mate sy proteien-inhoud die temperatuur die vloeispoed, of, meer akkuraat, die skuif-tempo die grootte van die vaat waardeur dit vloei, wanneer dit minder as 0♳ mm. ,Apparent viscosity' word in Engels gebruik, en dit moet omskryf word deur die skuiftempo's waarby dit gemeet is, te vermeld. NO CLINICAL MEDICINE die relatiewe viskositeit te praat nie.
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