Medicine and Health Sciences Commons^™

The Effect Of Different Interfaces On Aerosol Delivery In Simulated Spontaneously Breathing Adult With Tracheostomy, Alaa Ahmed Bugis

Respiratory Therapy Theses

Background: The delivery of an aerosol via a tracheostomy tube has been previously described with both a tracheostomy collar and a T-piece, but not with a Wright mask, or aerosol mask. The primary purpose of this study was to quantify lung doses using different interfaces: tracheostomy collar, Wright mask, and aerosol mask. The secondary purposes were to compare albuterol delivery between an opened vs. a closed fenestration hole and also to determine the effect of inspiratory time:expiratory time (I:E) ratio on aerosol delivery.

Methods: A teaching mannequin (Medical Plastic Labs, Gatesville, TX) with a tracheostomy opening was used. Two of …

Comparison Of Albuterol Delivery Between High Frequency Oscillatory Ventilation And Conventional Mechanical Ventilation In A Simulated Adult Lung Model Using Different Compliance Levels, Waleed A. Alzahrani

Respiratory Therapy Theses

COMPARISON OF ALBUTEROL DELIVERY BETWEEN HIGH FREQUENCY OSCILLATORY VENTILATION AND CONVENTIONAL MECHANICAL VENTILATION IN A SIMULATED ADULT LUNG MODEL USING DIFFERENT COMPLIANCE LEVELS By Waleed A. Alzahrani, BSRT BACKGROUND: Delivery of aerosol by pMDI has been described with conventional mechanical ventilation (CMV) but not with high frequency oscillatory ventilation (HFOV). The purpose of this study was to compare aerosol delivery to a simulated 75 kg adult with low compliance during both CMV and HFOV. Since actuation of pMDI with inspiration is not feasible with HFOV, we investigated the impact of actuation timing only during CMV. METHOD: CMV (Respironics Esprit) and …

Particle Size On Respiratory Protection Provided By Two Types Of N95 Respirators On Agricultural Settings, Jacob Cho Kyungmin, M. Susan Jones, Gordon Jones, Roy Mckay, Sergey A. Grinshpun, Alok Swivedi, Rakesh Shukla, Umesh Singh, Tiina Reponen

Nursing Faculty Publications

The objective of this study was to compare size-selective workplace protection factors (WPFs) of an N95 elastomeric respirator (ER) and an N95 filtering facepiece respirator (FFR) in agricultural environments. Twenty-five healthy farm workers ranging in age from 20 to 30 years voluntarily participated in the study. Altogether eight farms were included representing three different types: two horse farms, three pig barns, and three grain handling sites. Subjects wore the ER and FFR while performing their daily activities, such as spreading hay, feeding livestock, and shoveling. Aerosol concentrations in an optical particle size range of 0.7–10 µm were determined simultaneously inside …