CLOSING VOLUME IN NORMAL PREGNANCY
نویسندگان
چکیده
منابع مشابه
Closing volume during normal pregnancy.
Serial lung function studies were performed in ten healthy, primiparous women aged 21--28. Measurements were made at two-monthly intervals during pregnancy and included functional residual capacity (FRC), total lung capacity (TLC), vital capacity (VC), specific conductance (SGaw) and closing volume (CV) on each occasion. Closing volume expressed as formular: (see text), showed a progressive ris...
متن کاملSingle-breath, room-air method for measuring closing volume (phase 4) in the normal human lung.
The purpose of this study was to evaluate a new method to measure closing volume (CV). This new method does not require oxygen or inert gases to be inhaled to obtain the onset of phase 4. Because there are regional differences in the concentrations of the resident alveolar gases (O2, CO2, and N2), there should be an abrupt change in the concentration of these gases at the terminal portion of a ...
متن کاملPilot study of closing volume in byssinosis.
A study of the relative sensitivities of forced expiratory volume in one second (FEV1), maximal mid-expiratory flow (MMF), and closing volume (CV) in the detection of subjects with byssinosis was carried out in a North Carolina cotton mill. Altogether 35 workers participated in the study. Of these, nine showed a decline in FEV1 of 10% or more during the first work shift that followed the weeken...
متن کاملInvestigation of ANP Plasma Concentration in Normal Pregnancy and Preeclampsia
با وجود شواهد روزافزونی که بیانگر نقش احتمالی ANP در هموستاز طبیعی مایعات بدن است، اما هنوز اهمیت نقش این پیتید در سلامت و بیماری بدرستی مشخص نیست. بر اثر ازدیاد فشار دهلیزی و تعداد انقباضات آن، ANP از میوسیت های دهلیزی ترشح می شود. تزریق مقادیر زیادی از ANP صناعی به انسان و حیوان سبب کاهش فشار سیستمیک دهلیزی و افزایش دفع سدیم و برقراری دیورز می گردد. مطالعات اخیر بر روی تأثیر تزریق ANP صناعی ...
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During pregnancy, the mother adapts her metabolism to ensure the continuous supply of nutrients to the fetus in order to sustain its exponential growth. Among those nutrients crossing the placenta, glucose is quantitatively the most important, followed by amino acids. Although lipids cross the placenta in much lower proportion than the other nutrients, maternal lipid metabolism is consistently ...
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ژورنال
عنوان ژورنال: British Journal of Anaesthesia
سال: 1981
ISSN: 0007-0912
DOI: 10.1093/bja/53.10.1043