Intravenous Bolus
Intravenous Bolus - 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...
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.
07:48
Intravenous Endotoxin Challenge in Healthy Humans: An Experimental Platform to Investigate and Modulate Systemic Inflammation
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Cited by 45 •
2016
Intravenous administration of endotoxin reliably elicits dose-dependent physiological and immunological alterations consistent with several pathological states. This reductionist approach permits the investigation, modeling and experimental modification of systemic inflammation and its downstream effects in man.
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...
FAQs
Administration rate determines how quickly the drug enters the circulation and how sharply plasma concentration rises. A faster injection can produce a more abrupt therapeutic effect, but it may also increase the likelihood of adverse effects. For this reason, the prescribed injection rate is a critical safety variable, not merely a procedural detail.
Dose and injection speed influence plasma concentration through different but related mechanisms. The dose determines the total amount delivered, while the rate controls how rapidly that amount appears in the bloodstream. Their combined effect can alter therapeutic response and toxicity risk, so clinicians must verify both before administration rather than relying on dose alone.
Direct entry into the bloodstream removes absorption barriers that can delay systemic availability. This supports clinical situations requiring a prompt response, including emergency medication delivery, initiation of anesthesia, and administration of a loading dose. The same rapid availability also makes careful control of dose and rate important because unwanted effects may develop quickly.
Before administration, clinicians verify the measured dose, the availability and suitability of vascular access, drug compatibility, and the intended injection rate. These checks address both delivery reliability and preventable medication hazards. Confirming compatibility is especially important because an unsuitable combination can compromise administration even when the dose itself has been calculated correctly.
Patient monitoring should include signs of toxicity, hemodynamic changes, and local complications at the vascular-access site. Because the medication becomes systemically available rapidly, changes in therapeutic response or adverse effects may appear soon after delivery. Observation therefore helps clinicians recognize clinically important reactions and respond to problems associated with the drug or injection site.
Clinicians may choose this approach when a medication must become systemically available promptly, such as during emergency treatment or anesthesia initiation. It can also provide a loading dose when an initial amount is needed to begin therapy. The choice remains tied to safe execution, including compatibility checks, confirmed access, controlled rate, and patient monitoring.