Herbal infusions, skin softening and smoothing agents, and ________ are examples of restorative substances that can be added to baths

For an AP chest projection obtained with a mobile x-ray unit,

1. the IR is positioned parallel with the midcoronal plane. 2. the image is obtained without the use of a grid. 3. the manubrium is superimposed over the fourth thoracic vertebra. 4. 10 or 11 posterior ribs are demonstrated above the diaphragm. a. 1 and 2 only b. 1, 2, and 3 only c. 3 and 4 only d. 1, 2, 3, and 4

Both anemia and carbon monoxide (CO) poisoning can cause severe hypoxia, yet neither condi-tion results in a major stimulation of breathing. Why is this so?

a. The peripheral chemoreceptors do not re-spond to low O2 content. b. Anemia and CO poisoning depresses the peripheral chemoreceptors. c. Anemia and CO poisoning depresses the central chemoreceptors. d. Anemia and CO cause stagnant hypoxia, not hypoxemia.