Loc: Boston,Massachusetts U.S.A. I have a question on wedding traditions, I was hoping that you might enlighten me.. In Spain the wedding ring is put on the right hand while in the U.S it is on the left hand..
Doppler assessment of area by pressure half-time method ï§ The time required for the mitral diastolic pressure to fall by 50% ï§ Mitral valve area is calculated as: 220 â pressure half time (msec).
While the seven minute timer is going, you take a measurement of the length of the 4 min timer, with the width of your thumb. Whatever number of thumb widths it is, divide it by 2 and that will (very accurately) give you the half way point on the hourglass which will equal to 2 minutes.