Source:http://linkedlifedata.com/resource/umls/id/C0016266
UMD: Measuring instruments designed to determine the flow rate of a fluid (i.e., liquid, gas) that circulates through an anatomic structure (e.g., vessel, airway, organ) or a conduit (e.g., tube, pipe). Flowmeters may be mechanical or powered instruments and measurements are based on electromechanical, laser, electromagnetic, or ultrasound techniques and may include computerized capabilities. Dedicated flowmeters are used in healthcare facilities to measure the flow rate of blood, respiratory gases, and urine flow in anatomic natural ducts; other flowmeters are intended to measure flow during inspection, repair, and calibration of medical devices or medical gas systems.,MSH: Devices used to measure the flow of fluids (see RHEOLOGY) or the AIR to measure RESPIRATION.