Heliox Lab Report

Abstract Heliox is a mixture of oxygen and helium in specific percentages, which is used in treatment of obstructive diseases (like asthma). It can be used in adults as well as in pediatrics for upper or lower airway diseases. It is almost safe and has no noticeable side effects.
Introduction
Heliox is a gas used in hospitals in order to help patients to breath. Heliox is composed of two gases which are helium and oxygen. Some of its chemical properties are: gas, its color is not applicable, odorless, -268 C is its boiling point, when it contacts with combustible material may Couse a fire and becomes explosive. The most common combination ratio (helium+ oxygen) is 80:20 and 70:30. [1] Most clinical trials include less than thirty

Removal of the endotracheal tube need to be planned before intubate patient because it needs precise management and observation to wean the patients in order to extubate them and avoid re-intubation. One of the parameters to monitor patient before extubation is cuff leak test. Cuff leak test measure the air leak of the inflated cuff in the endotracheal tube. If the air leak exceed than 20 cm H2o, the intubated patient predicted to be have post-extubation stridor. There are many methods to treat post-extubated patients. [6] The respiratory therapy treatment involves Aerosolized levoepinephrine is as effective as aerosolized racemic epinephrine in the treatment of post-extubation laryngeal edema in children. Heliox may decrease symptoms of the partial airway obstruction and resultant stridor, improve patient comfort, significant decrease work of breathing, and prevent re-intubation. "A randomized, double-blind crossover trial studied the effects of heliox (70:30) in 13 children thought to be at high risk of post-extubation stridor".[7] Each patient served as his or her own control by breathing air-oxygen or heliox for 15 minutes following extubation. Respiratory distress scores were significantly lower while breathing

It is caused by infection, allergen, pollution, exacerbation, exercise and exposure to airway irritants affecting small airways. The irritants inflame the airways causing construction and decrease ventilation. There many ways to manage an asthmatic patient by using Bronchodilator, anti-inflammatory and mechanical ventilation therapy. The benefits of using heliox are to increase oxygenation and open the construction of the airways. Heliox has more efficacies to bass through the small airways to the smaller because of its velocity and low density. So that the uses of oxygen with bronchodilator do not have a quick affect in the small airway and the uses of heliox with bronchodilator have a quick effectiveness on the small airways and improvement in the vital