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  • Title: [Reproducibility of fasting serum cholesterol and triglycerides in ambulatory patients with mixed hyperlipidemia].
    Author: Martina B, Weinbacher M, Kiener S, Keller U, Battegay E.
    Journal: Schweiz Med Wochenschr; 1996 Dec 14; 126(50):2175-80. PubMed ID: 9005527.
    Abstract:
    Intraindividual variability of serum lipid concentrations in normal volunteers and in patients with hyperlipidemia is substantial. The aim of this study was to investigate prospectively the reproducibility of fasting serum triglyceride and total cholesterol concentrations in primary health care patients with combined hyperlipidemia, i.e. under conditions of daily medical practice. Secondary forms of hyperlipidemia were excluded. 19 general medical outpatients with primary combined hyperlipidemia were studied. Serum total cholesterol and triglyceride concentrations were measured after an overnight fast at 08.00 h 4 times at weekly intervals. To study the influence of alcohol intake on serum lipid concentrations, total cholesterol and triglycerides were measured without alcohol influence and 12 hours after consumption of a mean of 100 g alcohol in the evening. In 19 patients (10 males, 9 females, mean age 55 years, body mass index 27.9 +/- 4.4 kg/m2), mean +/- SD of serum triglycerides was 3.97 +/- 1.8 mmol/l and of total cholesterol 7.9 +/- 1.8 mmol/l. The combined intraindividual and interassay coefficient of variation was 18.7 +/- 8.2% for triglycerides and 5.1 +/- 2.5% for total cholesterol. Fasting serum triglycerides (3.5 +/- 1.1 vs. 3.7 +/- 1.4 mmol/l) and total cholesterol (7.6 +/- 1.4 vs. 7.8 +/- 1.0 mmol/l) did not significantly change 12 hours after acute alcohol consumption. Patients with primary combined hyperlipidemia in a primary health care setting show small intraindividual variations of overnight fasted serum triglyceride and total cholesterol concentrations. Moderate alcohol consumption 12 hours before blood sampling does not significantly affect triglyceride and cholesterol values.
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