The Science Journal of the American Association for Respiratory Care

2003 OPEN FORUM Abstracts

EVALUATION OF 16 ADULT DISPOSABLE MANUAL RESUSCITATORS

Nancy Marshall RRT, Daniel Mazzolini Jr RRT. Advocate Lutheran General Hospital, Park Ridge IL.

Introduction:
Disposable manual resuscitators (DMR) are a piece of critical care equipment used by RCPs daily. We bench tested 16 adult DMRs from 9 different manufacturers to evaluate their performance.

Methods:
To evaluate each DMR we performed a series of tests and made observations using the methods of the American Society for Testing and Materials (ASTM) and International Organization for Standardization (ISO) as a guideline. A Bio-tek, VT-1 adult ventilator tester was used for testing. Each DMR was tested for: fraction of delivered oxygen (FDO2) during 4 different clinical situations, tidal volume delivery with 1 hand or 2 hands, drop test from 1 meter onto a concrete floor, and valve lock-up at flowrate > 30L/m. Other observations included: reservoir style, PEEP attachment, texture, CO2 detection, and if the bag was labeled as "latex free".

RESULTS:
The results are shown in the table below. FDO2 was significantly effected by reservoir style. In general, DMRs with reservoir bags provided superior FDO2 compared to large bore and small bore tubing reservoirs. Delivered tidal volumes were acceptable for all DMRs. All DMRs passed a drop test. PEEP was easily attached to each DMR except for one, which needed adapters. Some DMRs had good texture and were easily handled while others were larger in size and somewhat slippery. No DMR had a patient valve lock-up during use with flows > 30L/m. All DMRs were labeled "latex free" except one. Only 2 DMRs offered CO2 detectors already attached






Conclusions: The performance of DMRs is critical, especially during resuscitation. The AARC CPG for Resuscitation in Acute Care Hospitals includes a section on manual resuscitators and states, "manual resuscitators must be capable of providing an FDO2 of 1.0 even when large volumes are delivered." Our findings suggest that FDO2 is significantly affected by reservoir style and may not deliver adequate oxygen under certain clinical circumstances. All DMRs do not look, feel, and perform alike. Each institution should evaluate and choose the DMR that best fits their needs while meeting established performance criteria.

You are here: RCJournal.com » Past OPEN FORUM Abstracts » 2003 Abstracts » EVALUATION OF 16 ADULT DISPOSABLE MANUAL RESUSCITATORS