Provocation of bronchospasm in pediatric patients can be useful in determining the cause and extent of

Which of the following steps is the correct order for producing duplicate films?

A) Remove duplicating film from the box and place emulsion-side down, remove original radiographs from mount and place on duplicator, close duplicator cover, set time, depress exposure button and process the film. B) Remove original radiographs from mount and place on duplicator, remove duplicating film from the box and place emulsion-side down, close duplicator cover, set time, depress exposure button and process the film. C) Remove duplicating film from the box and place emulsion-side down, remove original radiographs from mount and place on duplicator, close duplicator cover, depress exposure button, set time, and process the film. D) Remove duplicating film from the box and place emulsion-side down, close duplicator cover, depress exposure button, remove original radiographs from mount and place on duplicator, set time, and process the film.

For a given minute ventilation, partial pressure of end-tidal carbon dioxide (PetCO2) is a function of which of the following? 1. Metabolic rate 2. Cardiac output 3. Alveolar dead space 4. Physiologic shunt

a. 1 and 3 only b. 1, 2, and 3 only c. 2, 3, and 4 only d. 1, 2, 3, and 4