The muscle layer of the heart is the ____

A disposable oxygen humidifier should be considered for ambulance services that often transport patients on runs longer than:

A. 1 hour. B. 2 hours. C. 3 hours. D. 4 hours.

Work practice controls include which of the following?

a. Handwashing following glove removal b. No recapping of needles c. No storage of food where OPIMs are stored d. All of the above