It is called a sphygmomanometer.
A stethoscope is the device used to allow a medical (or other) technician or professional to listen to the internal body sounds. Links can be found below.
blood glucose is measured by mg
The instrument used to measure blood sugar is usually reffered to as a blood glucose meter, or a BSGM (Blood Sugar Glucose Meter).
Almost any pharmacy will have a glucose monitoring kit. They vary in price but most a pretty accurate.
A sphygmometer. (pronounced sfig- mo- met -er)
A Sphygmomanometer is used to measure blood pressure
Doppler imaging, such as in ultrasound or in a handheld device, is used to measure blood speed. This process can be used to measure, for instance, blood flow through leg arter…ies, or blood flow through the placenta.
They call it a Sphygmomanometer . (Sphyg mo manometer.) The word derives from the Greek for pulse, Sphyg. and Manometer for a pressure meter. For traditional reasons, the …pressure is still measured in the equivalent height of a column of mercury. Which is what was used originally in the manometer. inHg (Inches of mecury) The sphygmomanometer works by balancing air-pressure in an inflated cuff against the pulse pressure in the arm. A pressure gauge attached to the cuff indicates the pressure. The cuff is placed on the upper arm and then inflated. The pulse is listened to, using a stethoscope. The point at which the pulse can no longer be heard, is when the pressure of the cuff cuts off the blood supply and gives the upper reading, called the systolic. Then the pressure of the cuff is slowly released and the pulse listened to. The lowest pressure when the pulse can no longer be heard, is the Diastolic. This gives the two pressures of the heart, during a beat, at maximum pressure and when relaxed. These functions can be built into a machine, which uses a microphone to listen and an electric pump to control the cuff pressure. The computer displays the result on an LCD screen. The device was invented by Samuel Siegfried Karl Ritter von Basch in 1881. Scipione Riva-Rocci introduced a more easily used version in 1896. Harvey Cushing discovered this device in 1901 and popularized it.
Yes a blood glucose montior accurately measures your blood sugar. These are used by diabetics so they know if they need more insulin to regulate their blood.
The only way to get an "average" reading is to take multiple readings, not just one. Your question sounds like the glycated hemoglobin or "A1C" test. The average lifespan of t…he red blood cell is 120 days, so checking A1C levels about every 90 days would be about right. For more detailed information, please see link below: