What is the primary function of a flowmeter?

The primary function of a flowmeter is to control the rate of oxygen flow. Flowmeters are essential devices used in medical settings to ensure that patients receive the correct amount of oxygen during therapy. They provide a visual indication of the flow rate in liters per minute, which can be adjusted according to the patient's needs or the prescription given by a healthcare professional.

In oxygen therapy, maintaining the proper flow rate is crucial because it directly impacts the effectiveness of the treatment. If the flow is too high or too low, it may not provide the intended therapeutic benefit and could potentially lead to complications. Therefore, accurate control is vital for both patient safety and comfort. This capability to adjust and regulate the oxygen administration is why the flowmeter's role is fundamental in respiratory care and other medical scenarios involving gases.