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Blood pressure distribution in a school age population of Quetta, Pakistan
Abstract:
Standardized measurements of blood pressure, height and weight were obtained in 8-11 years old children, attending school in Quetta, Balochistan, Pakistan. The sample consisted of 427 individuals (219 boys and 208 girls). The blood pressure was measured by auscultatory method. To calculate the body mass index (BMI), the weight (kg) of each subject was divided by the square of the subject's height. Association between various variables and blood pressure was judged through correlation coefficient. The net and joint effect of selected variables on blood pressure variability was calculated using simple/multiple regression. The correlation coefficients with that of systolic blood pressure were 0.365, 0.427 and 0.341 whereas these were 0.397, 0.430 and 0.320 for diastolic blood pressure. Height had a regression coefficient of 0.475 mmHg/cm with systolic pressure and 0.419 mmHg/cm with diastolic blood pressure. Weight had a regression coefficient of 0.878 mmHg/kg and 0.717 mmHg/kg with systolic and diastolic pressure respectively whereas BMI had a regression coefficient of 2.35 mmHg/BMI unit with systolic pressure and 1.79 mmHg/BMI unit with diastolic blood pressure.
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Blood Pressure
The average BP in an adult is typically around 120/80 mmHg (millimeters of mercury). In this measurement, the numerator (120) indicates the systolic pressure, which is the pressure in the arteries during the contraction of the heart's ventricles as blood is expelled. The denominator (80) represents the diastolic...
Factors affecting Blood pressure
Physiological Factors:
Sites for measuring blood pressure
The Brachial Artery: Primary Site for Blood Pressure Measurement
Assessment of blood pressure in brachial artery(one-step method)
Prepare for the Procedure:
Special considerations while measuring blood pressure
Monitoring Both Arms:
Monitoring BP in both arms during the initial assessment is advisable, as the systolic value may differ by five to ten mm Hg between arms. For subsequent BP assessments, use the arm with the higher reading.
Blood Pressure

