redfox Posted April 5, 2006 Share Posted April 5, 2006 I need to express blood pressure in terms of kPa. The conversion is 1kPa - 7.5mmHg, or .133 kPa - 1mmHg, but how would this be expressed? Just kPa subsituting mmHg, ie kPa/kPa? Link to comment Share on other sites More sharing options...
Kedas Posted April 19, 2006 Share Posted April 19, 2006 After you convert the numbers you also change the unit. like 12/8 kPa. What is the problem? Link to comment Share on other sites More sharing options...
Leison Posted April 19, 2006 Share Posted April 19, 2006 if there's x mm then BP in kPa= density of Hg* acceln due to gravity* x* = 13500 *10*x = 135000 *x i think 1 mm= 135000 kPa Link to comment Share on other sites More sharing options...
Kedas Posted April 19, 2006 Share Posted April 19, 2006 h(m).density(kg/m³).g(9.81m/s²)=pressure (Pa) 1mmHg=0.001*13500*9.81=133Pa or 0.133kPa (Redfox was right about that) Link to comment Share on other sites More sharing options...
Leison Posted April 20, 2006 Share Posted April 20, 2006 oh ya i made a blunder. while converting pa to Kpa i multiplied by 1000 instead of dividing. normal bp=120/80 mm=16/11 kPa Link to comment Share on other sites More sharing options...
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