1 © 2013 Cengage Learning. All Rights Reserved. May not be copied, scanned, or duplicated, in whole or in part, except for use as permitted in a license distributed with a certain product or service or otherwise on a password-protected website for classroom use.

2 © 2013 Cengage Learning. All Rights Reserved. May not be copied, scanned, or duplicated, in whole or in part, except for use as permitted in a license distributed with a certain product or service or otherwise on a password-protected website for classroom use. Chapter 15 Humidity and Aerosol Therapy

3 © 2013 Cengage Learning. All Rights Reserved. May not be copied, scanned, or duplicated, in whole or in part, except for use as permitted in a license distributed with a certain product or service or otherwise on a password-protected website for classroom use. What is Humidity and What is Aerosol? Humidity –Water in gaseous form, or vapor Aerosol –Suspension of particulate water in a gas

4 © 2013 Cengage Learning. All Rights Reserved. May not be copied, scanned, or duplicated, in whole or in part, except for use as permitted in a license distributed with a certain product or service or otherwise on a password-protected website for classroom use. Humidifiers and Nebulizers Humidifier –Device that produces water in gaseous form (vapor) through the process of evaporation Nebulizer –Device used to aerosolize liquids

5 © 2013 Cengage Learning. All Rights Reserved. May not be copied, scanned, or duplicated, in whole or in part, except for use as permitted in a license distributed with a certain product or service or otherwise on a password-protected website for classroom use. Humidity Absolute Humidity –Amount of water vapor contained by a gas at a given temperature –Maximum Absolute Humidity (Capacity) Fully saturated with water vapor (100% saturated) (continues)

6 © 2013 Cengage Learning. All Rights Reserved. May not be copied, scanned, or duplicated, in whole or in part, except for use as permitted in a license distributed with a certain product or service or otherwise on a password-protected website for classroom use. Humidity (continued) Humidity deficit –Difference between a gas’s absolute humidity and body humidity –Body humidity Absolute humidity at body temperature, fully saturated 37 degrees Celsius, 100% saturation and 43.9 mg/L water vapor –Humidity deficit = body humidity – absolute humidity (continues)

7 © 2013 Cengage Learning. All Rights Reserved. May not be copied, scanned, or duplicated, in whole or in part, except for use as permitted in a license distributed with a certain product or service or otherwise on a password-protected website for classroom use. Humidity (continued) Relative Humidity –Gas’s absolute humidity expressed as a percentage of the gas’s capacity at any given temperature

8 © 2013 Cengage Learning. All Rights Reserved. May not be copied, scanned, or duplicated, in whole or in part, except for use as permitted in a license distributed with a certain product or service or otherwise on a password-protected website for classroom use. Equipment for Humidity and Aerosol Therapy Humidifiers –Bubble humidifiers –Wick humidifiers –Heated pass over humidifiers –Heat and moisture exchanger (continues)

9 © 2013 Cengage Learning. All Rights Reserved. May not be copied, scanned, or duplicated, in whole or in part, except for use as permitted in a license distributed with a certain product or service or otherwise on a password-protected website for classroom use. Equipment for Humidity and Aerosol Therapy (continued) Nebulizers –Large-volume nebulizers –MistyOx R nebulizers –Ultrasonic nebulizers –Small-volume nebulizers

10 © 2013 Cengage Learning. All Rights Reserved. May not be copied, scanned, or duplicated, in whole or in part, except for use as permitted in a license distributed with a certain product or service or otherwise on a password-protected website for classroom use. Humidity and Aerosol Therapy Operation of humidification equipment –Filling of reservoirs with sterile, distilled water –Attachment of delivery devices –Refer to the operation manual for the specific device being used.