نتایج جستجو برای: serum osmolality
تعداد نتایج: 307634 فیلتر نتایج به سال:
UNLABELLED Animal studies have shown that large volumes of IV lactated Ringer's solution (LR) decrease serum osmolality, thereby increasing cerebral water. These studies have led to recommendations to limit LR to avoid cerebral edema in neurosurgical patients. Eighteen healthy human volunteers aged 20-48 yr received 50 mL/kg LR over 1 h on one occasion and 0.9% sodium chloride (NS) on another. ...
OBJECTIVE Some H7N9 patients presented with hyponatremia. But whether SIAD could be the etiology of hyponatremia in H7N9 pneumonia is still not known. DESIGN SETTING AND PARTICIPANTS A H7N9 patient was enrolled. Clinical sign were evaluated. Effective osmolality, urinary osmolality, urinary sodium, thyroid function, adrenal function, 25(OH) Vitamin D and cellular immune function were measured...
The extensive pulmonary vasculature results in the lungs being intimately exposed to circulating blood. As increased serum osmolality may be associated with an increase in pro-inflammatory activity, this has the potential to result in damage to the lungs and reduced lung function. The objective of the present study was to test the hypothesis that increased serum osmolality is associated with a ...
The effect of mannitol on serum and urine electrolytes and osmolality was investigated intraoperatively in neurosurgical patients. Patients in Group A (n = 7) received 1 gm . kg-1 of 20 per cent mannitol ("low"-dose) and in Group B, (n = 7) 2 gm . kg-1 ("high"-dose). There was a significant decrease in serum sodium and bicarbonate, and a significant increase in serum osmolality in both groups a...
1 . The effects on the serum electrolytes of long-term treatment with either mestranol or a placebo were determined in 175 healthy middle-aged oophorectomized women. In forty of these women the packed cell volume (PCV), serum albumin, serum and urinary osmolality, inulin space and total exchangeable sodium (Na,) were also measured. 2. The mean serum sodium and chloride concentrations were signi...
To the Editor: We wish to comment on reference intervals for the serum anion gap and osmolality. The serum anion gap, which is most commonly defined as AG 5 Na-Cl-TCO2, traditionally has had a reference interval of 8 –16 mmol/L with a mean value (i.e., mean of values used to determine its reference interval) of 12 mmol/L (1, 2). In a recent report (3), the stated reference interval for the anio...
Serum sodium concentration and thus serum osmolality are closely controlled by water homeostasis, which is mediated by thirst, arginine vasopressin (AVP, also known as vasopressin or antidiuretic hormone (ADH)), and the kidneys. Thirst and ADH act in parallel to control plasma osmolality and sodium concentration. The physiology of thirst is a highly complex process that must be controlled by a ...
OBJECTIVES To assess which osmolarity equation best predicts directly measured serum/plasma osmolality and whether its use could add value to routine blood test results through screening for dehydration in older people. DESIGN Diagnostic accuracy study. PARTICIPANTS Older people (≥65 years) in 5 cohorts: Dietary Strategies for Healthy Ageing in Europe (NU-AGE, living in the community), Dehy...
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