What is intravenous fluid regulation? Intravenous fluid regulation is the control of the amount of fluid you receive intravenously, or through your bloodstream. The fluid is given from a bag connected to an intravenous line. This is a thin tube, often called an IV, that’s inserted into one of your veins. Fluids are administered this way for various reasons, all of which require control of the amount given. Without control, the rate of fluid administration relies on gravity alone. This can result in receiving either too much or too little fluid. The flow in an IV is regulated either manually or by using an electric pump. Regardless of how flow is regulated, nurses or medical caregivers must check IVs regularly to ensure both rate of flow and delivery of the correct dosage. There are several reasons why you might need to have fluids administered intravenously. For instance, some treatments rely on IV delivery. These include:
Fluids for such treatments consist of water with electrolytes, sugar, or medications added in concentrations that depend on your need. The rate and quantity of intravenous fluid given depends on your medical condition, body size, and age. Regulation ensures the correct amount of fluid drips from a bag down the IV into your vein at the correct rate. Complications can result from receiving too much too quickly, or not enough too slowly. There are two ways to regulate the amount and rate of fluids given during intravenous therapy: manually and using an electric pump. Both methods require your nurse to check your IV regularly to be sure you’re getting the correct amount of fluid. Manual regulationThe rate of fluid dripping from a bag into an IV can be regulated through a manual technique. Your nurse increases or decreases the pressure that a clamp puts on an intravenous tube to either slow or speed the rate of flow. They can count the number of drops per minute to make sure the rate of flow is correct, and adjust it as needed. Electric pumpThe rate of flow in your IV can also be modulated with an electric pump. Your nurse programs the pump to deliver the desired amount of fluid into the IV at the correct rate. A doctor must first determine the type of fluid you need for treatment, as well as the amount and the rate at which it’ll be delivered. A nurse will then disinfect the skin over the injection site. This is often on your arm, but could be elsewhere on your body. The nurse locates a vein at the site and inserts an IV catheter into it. It’ll sting a little when it goes in, but after that there should be little or no pain. The nurse then adjusts the IV manually or with a pump to set it to the correct rate of flow. Someone will check back regularly to make sure you’re doing well and that the IV is delivering the fluid correctly. If there are any problems with the flow, it’ll be adjusted. A few minor risks are associated with receiving fluids intravenously. These include infection at the injection site, a dislodged IV catheter, or a collapsed vein. All of these are easily corrected or treated. You can avoid dislodging your IV catheter by staying still or being careful not to pull on the tubing during fluid administration. A collapsed vein is more likely to occur if you need to have an IV catheter in place for an extended period of time. Complications related to the regulation of fluids include giving too much fluid too rapidly, causing fluid overload. Alternatively, not enough fluid may be given or it’s released too slowly. Overload can cause symptoms such as a headache, high blood pressure, anxiety, and trouble breathing. Some overload can be tolerated if you’re fairly health. But if you have other health problems, it can be dangerous. The symptoms of a low flow rate may vary depending on the person and the reason for having fluids administered. Usually, if you’re not getting enough of the fluids you need, you simply won’t respond to treatment in the way that’s expected. The administration of intravenous fluids via IV infusion is common and very safe. If you notice the flow seems to be going too fast or too slow, ask your nurse to check the flow rate. Alert them right away if you experience symptoms such as a headache or trouble breathing while receiving IV treatment. This website uses cookies. By continuing to use this website you are giving consent to cookies being used. For information on cookies and how you can disable them visit our Privacy and Cookie Policy. Got it, thanks!
A drip chamber is a device used to allow gas (such as air) to rise out from a fluid so that it is not passed downstream. It is commonly employed in delivery systems of intravenous therapy and acts to prevent air embolism. The use of a drip chamber also allows an estimate of the rate at which fluid is administered. For a fluid of a given viscosity, drips from a hole of known size will be of nearly identical volume, and the number of drips in a minute can be counted to gauge the rate of flow. In this instance the rate of flow is usually controlled by a clamp on the infusion tubing; this affects the resistance to flow. However, other sources of resistance (such as whether the vein is kinked or compressed by the patient's position) cannot be so directly controlled and a change in position may change the rate of flow leading to inadvertently rapid or slow infusion. Where this might be problematic an infusion pump can be used which gives a more accurate measurement of flow rate. Drip chambers can be classified into macro-drip (about 10 to 20 gtts/ml) and micro-drip (about 60 gtts/ml) based on their drop factors. For a given drip chamber (when the fluid drips from the hole into the chamber) drop factor means number of drops per ml of the IV fluid. Flow rate can be calculated with the help of the observations from the drip chamber and its drop factor. The unit of flow rate is gtts/min, where gtts means guttae (Latin plural noun meaning “drops”).
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