You are called for a 48-year-old man who is complaining of back and leg pain. Your assessment finds pain and tenderness in his lower back with tingling through his left buttock and down his left leg. He tells you that he has been moving furniture. You should suspect:

While checking a polarographic (Clark) electrode, you determine that the device fails to read 100% when exposed to pure O2. Which of the following actions would be the proper first step?

a. Check the silica crystals. b. Send the device out for repair. c. Replace the analyzer's batteries. d. Change the analyzer's fuel cell.

Discharge summary documentation must include

A. a detailed history of the patient. B. a note from social services or discharge planning. C. significant findings during hospitalization. D. correct codes for significant procedures.