Intravenous Dose
Intravenous Dose - Related Videos
07:22
Discontinuing Intravenous Fluids and a Peripheral Intravenous Line
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2023
Source: Madeline Lassche, MSNEd, RN and Katie Baraki, MSN, RN, College of Nursing, University of Utah, UT Intravenous (IV) fluid administration and peripheral IV catheters (PIVs) may be discontinued for a number of reasons. The most common reason for discontinuing IV fluids is that the patient has returned to normal body fluid volume (euvolemia) and is able to maintain adequate oral fluid intake or is being discharged from the hospital. In addition, the Centers for Disease Control Guidelines...
12:09
Methods for Intravenous Self Administration in a Mouse Model
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Cited by 35 •
2012
The intravenous self-administration (IVSA) paradigm is considered to be the gold standard in examining the reinforcing properties of drugs of abuse in rodents. This manuscript outlines the experimental procedures and surgical techniques necessary to obtain reliable IVSA data. In particular, meticulous catheter implantation and maintenance are highlighted.
11:39
Peripheral Intravenous Catheter Insertion
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2023
Source: Madeline Lassche, MSNEd, RN and Katie Baraki, MSN, RN, College of Nursing, University of Utah, UT The purpose of peripheral intravenous catheter (PIV) insertion is to infuse medications, perform intravenous (IV) fluid therapy, or inject radioactive tracers for special examination procedures. Placing a PIV is an invasive procedure and requires the use of an aseptic, no-touch technique. Common IV venipuncture sites are the arms and hands in adults and the feet in children. According to...
07:08
Assessing and Flushing a Peripheral Intravenous Line
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2023
Source: Madeline Lassche, MSNEd, RN and Katie Baraki, MSN, RN, College of Nursing, University of Utah, UT After peripheral intravenous (IV) access is initiated, it is important to assess and maintain the IV catheter according to institutional policies and nursing standards of practice. The regular assessment of the insertion site and the surrounding areas for signs of complications is necessary to prevent IV catheter complications, including infiltration, phlebitis, infection, extravasation, or...
08:51
Multiple Intravenous Bolus Dosing and Invasive Hemodynamic Assessment in a Hypoxia-Induced Mouse Pulmonary Artery Hypertension Model
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Cited by 1 •
2022
This protocol provides a step-by-step procedure for executing multiple intravenous bolus dose administration and invasive hemodynamic monitoring in mice. Investigators can use this protocol for future therapeutic compound screening for pulmonary artery hypertension.
FAQs
Administration rate influences how quickly plasma concentration rises and how high the peak becomes. A faster delivery can produce a more immediate effect but may also increase concentration-related adverse effects, whereas a slower infusion can moderate the peak. Clinicians therefore consider both the measured dose and delivery speed when seeking a controlled therapeutic response.
Once delivered, the medication distributes from the bloodstream into tissues, undergoes metabolism, and is eliminated from the body. These processes determine the duration and intensity of exposure after the initial dose. Differences in distribution, metabolic capacity, and elimination can therefore produce different clinical responses even when patients receive the same measured amount.
Body size, organ function, and disease state can alter drug exposure and the ability to remove medication. Dose selection must account for these patient-specific factors rather than relying only on a standard amount. Monitoring the response and, when relevant, blood concentrations helps clinicians adjust treatment to preserve therapeutic effects while reducing toxicity.
Clinical use begins with selecting an amount appropriate for the treatment goal and the patient, followed by choosing an administration rate that supports the intended exposure. Clinicians then monitor effects, adverse responses, and relevant blood concentrations. If the observed response differs from the therapeutic goal, the dose or delivery conditions may require adjustment.
This route is particularly useful when treatment requires rapid systemic exposure, precise blood concentrations, or dependable delivery despite absorption barriers. Clinical applications described for intravenous dosing include emergency treatment, anesthesia, fluid replacement, and electrolyte replacement. The choice reflects the need for timely or closely controlled therapy rather than a single universal dosing strategy.
Intravenous dosing provides a direct starting point for evaluating systemic exposure, allowing clinicians to relate the administered amount and infusion speed to subsequent distribution, metabolism, and elimination. This supports pharmacokinetic decisions about monitoring and adjustment. In patients with altered organ function or disease states, those decisions help balance the desired clinical effect against possible toxicity.