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Saline solution for irrigation. Normal saline (NSS, NS or N/S) is the commonly used phrase for a solution of 0.90% w/v of NaCl, 308 mOsm/L or 9.0 g per liter. Less commonly, this solution is referred to as physiological saline or isotonic saline (because it is approximately isotonic to blood serum, which makes it a physiologically normal solution).
Guidelines recommend against the use of nebulized hypertonic saline in the emergency department for children with bronchiolitis but it may be given to children who are hospitalized. [9] [15] Nebulized hypertonic saline (3%) has limited evidence of benefit and previous studies lack consistency and standardization.
Nasal irrigation (also called nasal lavage, nasal toilet, or nasal douche) is a personal hygiene practice in which the nasal cavity is washed to flush out mucus and debris from the nose and sinuses, in order to enhance nasal breathing.
While they may start out hypertonic they become hypotonic solutions as the sugar is metabolised. [5] Versions are also available mixed with saline. [3] Dextrose solutions for medical use became available in the 1920s and 1930s. [6] [7] It is on the World Health Organization's List of Essential Medicines. [8]
This is due to urea entering the cell down its concentration gradient, followed by water. The osmolarity of normal saline, 9 grams NaCl dissolved in water to a total volume of one liter, is a close approximation to the osmolarity of NaCl in blood (about 290 mOsm/L). Thus, normal saline is almost isotonic to blood plasma.
Plasma osmolarity of some reptiles, especial those from a freshwater aquatic environment, may be lower than that of mammals (e.g. < 260 mOsm/L) during favourable conditions. Consequently, solutions osmotically balanced for mammals (e.g., 0.9% normal saline) are likely to be mildly hypertonic for such animals.
In medicine, a nebulizer (American English) [1] or nebuliser (British English) [2] is a drug delivery device used to administer medication in the form of a mist inhaled into the lungs. Nebulizers are commonly used for the treatment of asthma, cystic fibrosis, COPD and other respiratory diseases or disorders.
Saline sprays are typically non medicated. A mist of saline solution containing sodium chloride is delivered to help moisturize dry or irritated nostrils. This is a form of nasal irrigation. They can also relieve nasal congestion and remove airborne irritants such as pollen and dust thereby providing sinus allergy relief.