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  • 1
    Electronic Resource
    Electronic Resource
    Springer
    Intensive care medicine 1 (1975), S. 153-162 
    ISSN: 1432-1238
    Keywords: Blood resistivity
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract The temperature dependence of the resistivity of blood samples with haematocrits from 16 to 52.5% has been investigated over the temperature range of 22° to 40 °C at a frequency of 100 kHz. The resistivity of whole blood increased with an increase in haematocrit and a decrease in temperature. The data fitted the relationship: Pohm-cm = (6272 Hct + 75.176) − (0.104 Hct + 1.467) tC where Hct is the percentage haematocrit.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    Medical & biological engineering & computing 13 (1975), S. 182-186 
    ISSN: 1741-0444
    Keywords: Blood resistivity ; Electrical impedance ; Cardiac output
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology , Medicine
    Description / Table of Contents: Sommaire Pour pouvoir appliquer la méthode de l'impédance électrique pour la mesure du débit sanguin chez des patients à l'hémodialyse où l'on peut rencontrer use vaste gamme d'hématocrites, il est nécessaire d'avoir des connaissances sur la relation entre la résistivité et l'hématocrite du sang. Une relation linéaire optimale a été déterminée pour le sang humain à 37°C et 100 kHz sur la gamme d'hématocrites de 14 à 45%.
    Abstract: Zusammenfassung Um die elektrische Impedanzmethode zur Messung der Herzleistung bei Patienten anwenden zu können, die durch Blutidialyse behandelt werden, wo ein breiterer Bereich von Blutzentrifugenwerten angetroffen werden kann, ist die Kenntnis des Verhältnisses zwischen dem spezifischen Widerstand des Blutes und dem Blutzentrifugenwert enforderlich. Es wurde ein Verhältnis nach der linearen Methode der kleisten Quadrate für das menschliche Blut bei 37°C und 100 kHz über einen Blutzentrifugenwertbereich von 14 bis 45% bestimmt.
    Notes: Abstract In order to be able to employ the electrical-impedance method for the measurement of cardiac output in patients on haemodialysis where a wide range of haematocrits may be encountered, a knowledge of the relationship between the resistivity and haematocrit of blood is required. A linear least-squares relationship has been determined for human blood at 37°C and 100 kHz over the haematocrit range from 14 to 45%
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
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