What test measures oxygen, carbon dioxide, and pH levels in the blood?

Medical assistants in search of a position should send résumés and a cover letter to:

A) employment agencies, medical offices not currently hiring, and advertised Internet positions. B) advertised positions on Internet sites. C) medical-office facilities not currently hiring. D) employment agencies and advertised positions on Internet sites.

An essential component of the definition of learning is that it:

A. Results in relatively permanent improvement. B. Results in consistently correct performance. C. Can be observed during practice. D. Can be directly observed.