Normal Saline Flush
Normal Saline Flush - Related Videos
07:08
Assessing and Flushing a Peripheral Intravenous Line
0 Views •
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...
03:15
A Hypertonic Saline Injection Technique for Inducing Glaucoma in Rats
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2025
This video demonstrates glaucoma induction in an anesthetized rat by injecting hypertonic saline into the episcleral vein. The saline enters the trabecular meshwork via Schlemm's canal, causing tissue scarring, which blocks aqueous humor outflow and raises intraocular pressure. The elevated pressure damages retinal ganglion cells, leading to glaucoma.
01:17
Salinity Tolerance of Alishewanella Species Isolated from Seawall Muddy Water
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2025
Begin with a culture of Alishewanella, a Gram-negative, salt-tolerant bacterium.Next, streak the culture onto agar plates containing increasing concentrations of sodium chloride to simulate varying levels of saline stress.Overlay each plate with a layer of unsolidified medium to prevent oxygen diffusion and maintain the culture in an oxygen-limited environment.Seal and incubate the plates at an optimum temperature to support bacterial growth.During incubation, the bacterium exhibits varying...
06:29
Salinity-dependent Toxicity Assay of Silver Nanocolloids Using Medaka Eggs
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Cited by 2 •
2016
Embryonic stages are the most susceptible to xenobiotics. Although chemical toxicity depends on salinity, no method exists to test the salinity dependence of toxicity to aquatic organisms. Here, we describe a new and high-throughput method for determining the salinity dependence of toxicity to aquatic embryos.
01:19
Normal Stress
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2024
Normal stress is a type of stress that occurs when forces act perpendicular, or normal, to a material's cross-sectional area. This stress often arises in structures when subjected to axial loading, which is the application of force along the axis of an object. A practical example of this can be found in bridge truss members. When a rod is under axial loading, the internal forces and corresponding stress are normal to the plane of the section, so it is termed normal stress. It's important to...
FAQs
The injection should be controlled so the clinician can recognize unusual resistance while assessing whether the catheter remains open and usable. Resistance may signal an access problem that requires attention rather than continued force. This makes flushing both a maintenance action and an early opportunity to identify potential occlusion or other line-related difficulty.
Flushing before medication administration helps assess whether the access is usable, while flushing afterward clears residual medication from the lumen. Removing remaining drug reduces the chance that medications will remain together in the line and create an incompatibility problem. The sequence therefore supports safer delivery and helps preserve the catheter for subsequent use.
Sterile 0.9% sodium chloride provides a compatible fluid for clearing residual medication, blood, or other material from the catheter lumen. By helping remove material that could remain inside the access device, it supports continued patency, meaning the lumen stays open for intended use. Its role is therefore linked to both line maintenance and medication delivery.
Both peripheral and central lines may require flushing, but the appropriate practice depends on the access device and its governing protocol. Healthcare professionals should follow device-specific instructions rather than assume that one approach applies to every line. This distinction matters because correct technique and timing must match the type of vascular access being used.
Common points include before and after medication administration, around infusions, and in connection with blood sampling. These uses help maintain access, clear material left in the lumen, and support safe transitions between different line activities. The specific timing should follow the clinical and device-specific protocol governing the peripheral or central access.
Resistance or another unexpected access problem should be recognized during the controlled injection and addressed according to the applicable clinical and device-specific protocol. Continued use without evaluating the problem could compromise catheter usability or medication delivery. The value of observing the flush is that it can identify difficulty early, before the line is needed for another procedure.