© 1983 Oxford University Press
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HAEMATOLOGICAL AND BIOCHEMICAL LABORATORY VALUES IN AN AMBULATORY ELDERLY POPULATION: AN ANALYSIS OF THE EFFECTS OF AGE, SEX AND DRUGS
Dunedin Program Dunedin, Florida
Department of Pharmacy Practice, College of Pharmacy University of Florida Gainesville, Florida
Biostatistics Unit, Department of Statistics, University of Florida Gainesville, Florida
Haematological and biochemical test results of 2242 ambulatory, elderly subjects in a health screening programme were used to study normal ranges for these values. A large percentage of leucocyte and erythrocyte counts and haemoglobin and haematocrit values were below the reference range of the laboratory performing the tests. Over 25% of erythrocyte counts were below the lower limit of normal, while in men 50% of mean corpuscular haemoglobin values were above the upper limit of normal. A large percentage of serum potassium concentrations were below the lower range of normal, while a high percentage of blood urea nitrogen, creatinine, triglycerides, and lactic dehydrogenase concentrations fell above the upper limit of normal. When subjects using drugs were compared to a nondrug-taking group, significant differences were found in serum potassium, chloride, carbon dioxide, creatinine, uric acid and serum glutamic oxalo-acetic transaminase concentrations.
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