Isotonic, Hypotonic & Hypertonic IV Fluid Solution NCLEX Review Notes

Isotonicity, hypotonicity, hypertonic solutions are widely used in medical practice.

In nursing schools and NCLEX exams, you are asked to know what type of intravenous infusion is considered isotonicity, hypotonicity, hypertonicity. This article briefly explains how each solution works at the cellular level.

Also, I am testing for isotonicity, hypotonicity and hypertonicity that you can test your knowledge about this content.

The cells are divided into two parts: (intracellular and extracellular). Each part consists of a solution which makes it possible to transfer the liquid from the outside to the inside of the cell by infiltration.

When the cell prefers to be in an isotonic state, when something becomes inequality (eg hypotonic or hypertonic state) it uses penetration to try to equalize it

Penetration allows solvent molecules to pass from a low concentration solution through a semipermeable membrane to a high concentration solution. The important thing to keep in mind here is that everything changes from low to high.

Recall that when we talk about isotonicity and low / high osmotic pressure, we discuss its extracellular performance compared to the inside of the cell.

Cells have the same concentration both inside and outside, under normal conditions the cells are isotonic both intracellular and extracellular.

A 5% dextrose solution (D 5 W) ** is used as a hypotonic solution because the body absorbs glucose but is considered to be isotonic

Use isotonic solution: Increase extracellular fluid volume due to blood loss, surgery, dehydration, loss of body fluids

The cell has a small amount of solute on the outside of the cell, and it wants to move inside the cell to permanently restore everything by permeation. This may cause the cells to swell and the cells to rupture or dissolve.

If the cells are dehydrated and liquid needs to be returned to the cells, use hypotonic solution. This occurs when a patient develops diabetic ketoacidosis (DKA) or hyperosmolar hyperglycemia

IMPORTANT: Pay attention to the circulating system that consumes moisture, as it is about to push the extracellular fluid into the cell for hydration. For patients with high risk of intracranial pressure (possibly causing movement of bodily fluids to the brain tissue), extensive burns, trauma (already hypovolemic), etc., because of the possibility of consuming body fluid volume, hypotonia Never give treatment

Cells contain excess solute on the outside of the cells and permeation causes water to protrude from the cells out of the cells and causes the cells to contract.

When using hypertonic solution (very cautiously ... due to rapid side effects of pulmonary edema / liquid overload, it is possible that it can be given in ICU). Furthermore, since the hypertonic solution is at risk of viability and penetration into the vein, it is preferable to administer the hypertonic solution through the centerline.

Based on solute concentration, your body may have three types of solutions: isotonicity, hypotonicity, and hypertonicity. An isotonic solution is one in which the concentration of solute is the same inside and outside the cell. The hypotonic solution is a solution in which the solute concentration in the cell is larger than the outside, and the hypertonic solution is a solution in which the solute concentration is outside the inside of the cell. For cells in the body, the ideal solution is an isotonic solution. This is because water (the main solvent in the body) likes to diffuse from the low solute concentration region to the high solute concentration region. This process is called penetration. This is because the balance of solvent to solute ratio is basically kept by diffusing to places where there are many solutes.

The solute is divided into three stages: isotonicity, hypertonicity and hypotonicity. Isotonicity is when there is an amount of solute equal to the solution. As with equilibrium there is no net change in the amount of water in both solutions. When the solute concentration of the solution is different, the solute with low solute is hypotonic and the solute with high solute is hypertonic. Low permeability absorbs solute from hypertonic side and releases solute. These kinds of solutions have a final move. Molecule moves from hypotonic solution to hypertonic solution. The third way for substances to pass through cell membranes is to promote diffusion. This occurs when a special carrier protein passes through the membrane using active transport to carry dissolved solutes in water.