I am using an aneroid sphyg and the blood pressure values are too high. What is wrong?

There are a number of things that could be causing you to get higher values. It is possible the blood pressure of the person being measured, is, in fact, higher than believed. Blood pressure is a very dynamic vital sign and responds quickly to both physiological and psychological stimuli. Changes of 40mmHg or more on systolic values are quite common. Make sure the patient has rested for at least 2-3 minutes before taking their BP. Second, make sure you are using an appropriately sized cuff. If the cuff is too small for the patient, you could get elevated readings – in some cases significantly elevated readings. Third, make sure the manometer is accurate. If the needle rests outside the oval with the unit fully deflated, it is most definitely in need of calibration. However, even if the needle is inside the oval, it is possible for the unit to be out of calibration. Follow this link for the procedures on checking calibration. Finally, make sure you are following proper measurement technique. In manual measurement, technique is as important, if not more important than the instrument itself.