Why screening of blood pressure in childhood and adolescence in high risk groups is considered 2ry prevention and not 1ry prevention?
A. By screening we mean we need to detect the disease early, give suitable treatment aiming to prevent complications of hypertension. So this is 2ry prevention as hypertension may be a silent disease and if we wait for symptoms it may be late, we discover it by measuring the BP in asymptomatic individuals. When we do promotion of healthy lifestyle as healthy diet, regular exercise, preventing obesity, … we are preventing the risk factors that leads to hypertension. This is 1ry prevention. Q12. “Blood pressure doesn’t increase significantly with age in populations with the lowest urinary Na excretion” What does this mean? Won’t decreased Na excretion lead to water retention à increased blood pressure? A. Here we are taking about population features and its relation to hypertension. In epidemiology it is called correlation or ecological studies. Na excretion in urine indicates high Na intake in food. Populations who consume low Na in diet will have low urinary Na excretion and so this
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