Calculated from a practitioners order, flow rate is usually expressed as the total volume of IV solution infused over a prescribed interval, or as the total volume given in milliliters per hour. Many devices can regulate the flow of IV solution, including several types of clamps, an IV flow regulator, and an electronic infusion device. (See Using IV clamps.)
When regulated by a clamp, flow rate is usually measured in drops per minute; by an infusion pump, in milliliters per hour. Flow regulators can be set to deliver the desired amount of solution, also in milliliters per hour. Less accurate than an electronic infusion pump, flow regulators are most reliable when used with inactive adult patients. With any flow regulating device, IV flow rate can easily be monitored by using a time tape, which indicates the prescribed IV solution level at hourly intervals. (See the "IV catheter maintenance" procedure.)
Watch with second hand labels Optional: drip rate chart.
Check the label on the IV administration set to determine how many drops per unit it delivers. A standard macrodrip IV administration set delivers from 10 to 20 drops/mL, depending on the manufacturer. A microdrip IV administration set delivers about 60 drops/mL. A blood transfusion set delivers about 10 drops/mL. A commercial adapter is available that converts a macrodrip set to a microdrip system.
Inspect all IV equipment and supplies. If a product is expired, is defective, or has compromised integrity, remove it from patient use, label it as expired or defective, and report the expiration or defect as directed by your facility.1
An excessively slow IV flow rate may cause insufficient intake of fluids, drugs, and nutrients; an excessively rapid IV flow rate of fluid or drug infusion may cause circulatory overload-possibly leading to heart failure and pulmonary edema-as well as other adverse drug effects.
Record the original IV flow rate when setting up a peripheral IV line. If you adjust the IV flow rate, record the change, the date and time, and your initials. Document the patients response to therapy, any complications, interventions provided, and the patients response to those interventions. Document teaching provided to the patient and family (if applicable), their understanding of that teaching, and any need for follow-up teaching.
Recommendations of the Healthcare Infection Control Practices Advisory Committee and the HICPAC/SHEA/APIC/IDSA Hand Hygiene Task Force
. MMWR Recommendations and Reports, 51(RR-16), 145. https://www.cdc.gov/mmwr/pdf/rr/rr5116.pdf (Level II)Infection control. 42 C.F.R. § 482.42
.Accreditation requirements for acute care hospitals
. (Level VII)Accreditation requirements for acute care hospitals
. (Level VII)Patients rights. 42 C.F.R. § 482.13(c)(1)
.Medical record services. 42 C.F.R. § 482.24(b)
.Accreditation requirements for acute care hospitals
. (Level VII)