Open the calipers and place the object to be measured between the jaws. Close the jaws until they touch the object lightly but firmly. Read the measurement on the main scale where the zero of the vernier scale aligns. Find the vernier scale reading that aligns exactly with any line on the main scale. Add the two readings to get the final measurement.
In nursing, it's essential to ensure that the calipers are calibrated correctly before use to maintain accuracy, and to handle the instrument with care to avoid any damage.
