there is a way to palpate a systolic and a diastolic and it's pretty darn accurate. Place your fingers on the pulse near the A.C. (right where you'd place the bell of your stethoscope), feel the pulse, pump up the cuff about 20-30 mm past where you loose the pulse. Release slowly. The first time you feel a pulse will be the systolic, when you feel the "change" in the pulse, that is your diastolic. Exactly like you'd take it with your stethoscope, only you're using your finger tips. Practice it a couple of times before you rely on it. It's a great skill to have when you're in a noisy place and can't hear a pulse.