To track what medications have been prescribed to a patient, the practice might use a:

Trace elements in biological fluids can be measured using which of the following instrumentation techniques?

A. Reflectometry B. Enzyme immunoassay C. Atomic absorption spectrometry D. Osmometry

Foreign bodies that a patient swallows:

A) must be removed if they are poisonous. B) are sometimes retrieved endoscopically. C) can create an obstruction or perforation. D) all of the above.