Band Cells: Band cells are a type of white blood cell. Band cells are the immature form of neutrophils and are produced rapidly during an infection. A large percentage of band cells in a venous blood sample indicate an infectious process occurring in the body.
Sensitivity and specificity. Sensitivity and specificity are concepts used to assess a clinical test. Sensitivity is a measure that determines the ability of a test to correctly classify an individual as sick or diseased. Specificity is a measure of the ability of a test to correctly classify an individual as healthy or disease-free. Parikh and others reckons that sensitivity and specificity are inversely proportional, which means that as the value of sensitivity increases, the value of specificity decreases and vice versa.
Characteristics of Sensors. High Sensitivity: Sensitivity indicates how much the output of the device changes with unit change in input (quantity to be measured). For example the voltage of a temperature sensor changes by 1mV for every 1oC change in temperature than the sensitivity of the sensor is said to be 1mV/oC. Linearity: The output should change linearly with the input. High Resolution: Resolution is the smallest change in the input that the device can detect.