A non-stretchable tape measure should be used when measuring. A tape measure is usually a bendable metal measuring tape. When measuring, the tape measure is wound as close as possible to the widest circumference of the head. Usually, this area is 1-2 finger widths above the forehead eyebrows to the most prominent part of the back of the head. Three measurements are taken, taking the maximum measurement accurate to 0.1 cm. Early in a child’s life, head circumference is an important measurement because it indirectly reflects brain size and development. Almost all brain development occurs before the age of two years, so the plotted head growth curve can be used as a general indicator of brain health in young children. Length Length is a linear measurement taken for infants less than 24 months of age. length can also be measured (instead of height) for children 24 to 36 months of age who are unable to stand independently. Length is measured while the child is in the prone position (lying flat). The most accurate way to measure length is to use a calibrated length board. The length board should have a fixed head stop perpendicular to the board surface and a removable foot board. To measure, place the child flat on the board with the head resting against the fixed stop. Make sure the child is not wearing shoes or a hat. An assistant may be able to help keep the child still and in the middle of the board. Keep the child’s leg straight and adjust the movable footboard so that the sole of the child’s foot rests against the footboard. Record length to the nearest 0.1 cm. Length is an important determinant of a child’s nutritional status. If a child is chronically malnourished, he or she may show slow growth in length. Weight Weight is a measurement that needs to be taken throughout the life span to help determine current nutritional status and trends. Either of several different devices can accurately measure an infant’s weight. If a pan-type pediatric scale is available, the child can be weighed lying down. These pediatric scales are either electronic or lever scales that contain their own weight and can be accurate to 10 grams. Another option is a hanging scale. A hanging scale needs to be hung from a stable structure (e.g., building rafters, door frame) with the child suspended from the scale’s weighing arm. When measuring, make sure the child is wearing as little clothing as possible and that no one is touching the child. Take a reading at eye level and record the weight to the nearest 10 grams. Repeat the measurement three times, removing any deviations and finding the average. If an infant scale is not available, an adult standing scale can be used to measure the weight of the baby. First weigh the adult, then have the same adult hold the child and weigh it. Calculate the difference between the two weights C this is the weight of the infant. Weight-for-age is an important indicator of changes in a child’s nutritional status over time, such as the tendency to be underweight. On the other hand, weight-for-length helps determine a child’s current nutritional status. It is a key indicator of whether a child is wasting. These measurements can be applied to the most commonly used growth charts.