Lice Treatment: Examples of Over-the-Counter Products. Lice Treatment: Examples of Over-the-Counter Products. Lice Treatment: Examples of Over-the-Counter Products. There are quite a few over-the-counter products that claim to kill lice or their eggs (nits). Permethrin 1% creme rinse (such as Nix). Pyrethrins and piperonyl butoxide shampoo (such as RID).
In general, if someone has an increased serum osmolality, it is due to either decreased water in the blood or increased solutes. If the person has decreased serum osmolality, it is due to increased fluid levels.
Osmolality is a measure of the total number of particles in a solution. It is also affected by the amount of solvent in the system. Hence it is a good indicator of the level of hydration, and can be used to give the water dimension to specific electrolyte analysis. All physiological fluids can be tested for osmolality. While plasma (serum) and urine are most typically measured in the clinical setting, whole blood, CSF, amniotic fluid, sweat, and stool water may also be of interest. Researchers may want to analyze tissue homogenate and media for culture, separation and fixation.