What is the thickest layer of the heart?

_________ EHR technology gives assurance to purchasers that a specific EHR system provides the features necessary to meet meaningful use criteria

a. Certified b. Guaranteed c. Approved d. Functional

Using an image receptor holder with an external aiming device will most likely eliminate what error?

a. Overlapping b. Unequal distribution of arches recorded c. Cone cutting d. Incorrect placement of the image receptor