Electrolyte Excretion in Elderly Subjects: Reference Ranges and Implications for Cardiovascular Disease
نویسندگان
چکیده
منابع مشابه
Electrolyte and Water Excretion
The increased capacity of hypertensive subjects to excrete sodium is frequently reduced by effective antihypertensive drug treatment. This reduction in sodium excretion is not necessarily associated with changes in renal hemodynamic function or resting sodium excretion. It appears to result from an alteration in renal tubular activity. The findings suggest that the arterial pressure per se may ...
متن کاملEstimation of reference ranges: how many subjects are needed?
We measured Na, K, Cl, glucose, hemoglobin, erythrocytes, and hematocrit in the serum or blood from approximately 800 male and 200 female second-year medical students in an effort to define the size of an acceptable reference population. Using the data from the men and Monte Carlo simulations of 10-400 samples, each carried out 5000 times, we found that for most of the above tests, approximatel...
متن کاملElectrocardiographic reference ranges derived from 79,743 ambulatory subjects.
BACKGROUND Reference ranges for electrocardiogram (ECG) intervals, heart rate, and QRS axis in general use by medical personnel and ECG readers are unrepresentative of true age- and sex-related values in large populations and are not based on modern electrocardiographic and ECG reading technology. METHODS AND RESULTS The results of ECG interpretation by cardiologists using digital technology ...
متن کاملReference ranges for serum C4 concentrations in subjects with and without C4 null alleles.
Serum C4 concentrations were measured in 102 healthy subjects and 90 subjects with type I diabetes mellitus. A wide range was observed in the group as a whole (0.08-0.67 g/l; mean = 0.26 g/l; SEM = 0.01 g/l). After C4 allotyping it was possible to subgroup 134 of these subjects according to the number of C4 null alleles present. C4 concentrations in the group with two null alleles were lower th...
متن کاملTrimester-Specific Reference Ranges for Free Thyroxine Hormone in Iranian Pregnant Women
Introduction: Physiological changes during pregnancy affect thyroid function and also free thyroxine (FT4) assay methods. These impacts make immunoassays unreliable for detecting hypothyroxinemia during pregnancy. Due to pregnant women’s adequate consumption of iodine in Iran, reference ranges of FT4 needs to be obtained for this group. Materials and Methods: A total of 1077 Iranian pregnant wo...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Age and Ageing
سال: 1998
ISSN: 0002-0729,1468-2834
DOI: 10.1093/ageing/27.suppl_1.p4-c