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4 Cards in this Set
- Front
- Back
- 3rd side (hint)
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Approximate Efficiency of Different Humidifiers |
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Could Her HotWaterBath HeatNebs for U/S. 1.C: cold water bubble through 2. H: Heat & Moisture Exchanger 3. Hot Water Bath 4. Heated Bernoullie Nebs & Anvil 5. Ultrasonic Nebulizer (adjustable) |
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Discuss the pros of cons regarding the size of droplets produced by a Nebulizer? |
Large droplets may Loosen secretions in the trachea. Small droplets may be a prolific source of infection Esp if Humidifier is infected. 20microns -they fall out to form pools of water either in the tubing or in the upper respiratory tract
5microns fall out in the region of the trachea
1micron. extremely stable and can be inspired and then expired again Ideal Produced by Ultrasonic Nebulizer. |
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Complications related to high humudification |
By the addition of droplets to the inspired gas, it is relatively easy to obtain moisture levels corresponding to relative humidities of well over 100%, and so, especially with children, it is easy to overload the patient with water. In addition to this danger of water intoxication, problems may arise from hypoxia if too high a humidity is provided. |
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Causes of Hypoxia associated with humidification |
1.Ventilation - perfusion mismatch hypoxia can be caused by shunting of blood with alteration of ventilation-perfusion ratios due to non-functioning alveoli. 2. Increased resistance to airflow. -This may arise from narrowing of the diameter of the air passages by the film of water or wave formation in this film. -The inspired droplets also increase the density of the gases and raise the resistance to turbulent flow |
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