Intravenous Route
Intravenous Route - Related Videos
02:20
Routes of Persuasion
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2020
Persuasion is the process of changing our attitude toward something based on some kind of communication. Much of the persuasion we experience comes from outside forces. How do people convince others to change their attitudes, beliefs, and behaviors? What communications do you receive that attempt to persuade you to change your attitudes, beliefs, and behaviors? Yale Attitude Change Approach The topic of persuasion has been one of the most extensively researched areas in social psychology...
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...
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...
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.
FAQs
Because the medication enters the systemic circulation directly, its delivery does not depend on gastrointestinal absorption. It also avoids first-pass metabolism, the initial processing that can occur before an orally administered drug reaches general circulation. This makes the amount reaching the bloodstream more predictable and helps pharmacologists select intravenous dosing when oral delivery would be unreliable or insufficient.
Dose and infusion rate determine how quickly drug concentrations rise and how much medication enters the circulation over a given period. Adjusting these variables allows clinicians to produce more controlled blood concentrations rather than delivering the entire amount at once. However, faster administration can intensify adverse effects, so the intended rate is an important part of safe pharmacologic use.
A medication delivered directly into a vein can reach the systemic circulation immediately, leaving little opportunity to delay exposure through absorption. If administration is too rapid or the dose is incorrect, blood concentrations may rise sharply and adverse effects can become more intense. This relationship makes speed and dose central safety considerations whenever rapid systemic delivery is required.
The intravenous route is particularly useful when treatment requires rapid, predictable systemic delivery or when a medication is poorly absorbed orally. It also suits situations in which clinicians need to adjust blood concentrations by controlling the dose or infusion rate. These advantages explain its role in emergency treatment, anesthesia, fluid replacement, and other pharmacologic settings requiring direct circulation access.
Intravenous delivery generally requires placing the medication into a vein either by injection or by infusion, followed by control of the administered dose or infusion rate. The technique must preserve cleanliness and avoid injury to the vein. Accuracy matters at every stage because contamination, dosing errors, or improper administration can produce serious complications rather than the intended therapeutic effect.
Both approaches place medication into a vein, but they differ in how delivery is controlled. An injection introduces the medication directly, whereas an infusion allows administration over a period while the rate is controlled. This distinction is pharmacologically important because changing the delivery pattern can influence how quickly blood concentrations rise and how strongly adverse effects may appear.
Important risks include contamination, injury to the vein, dosing errors, and adverse effects intensified by rapid administration. These problems can arise from the technique itself or from incorrect control of the dose and delivery rate. Consequently, intravenous use requires careful handling and administration, particularly when the need for rapid treatment increases the consequences of an error.
Its applications extend beyond medication delivery alone. In emergency treatment, it supports rapid access to systemic circulation; in anesthesia, it provides a direct way to administer drugs; and in fluid replacement, it delivers fluids through a vein. The same route is also valuable for poorly orally absorbed drugs, linking its practical use to both urgency and drug absorption limitations.