Pulse oximeter readings are generally unreliable at saturations below what level?

When both a preventive medicine code and an office or other outpatient services code are reported on the same day for the same encounter:

A) assign two diagnosis codes. B) use a bundled encounter code. C) apply modifier-35 to the second code. D) all of the above.

Which of the following is a reversible cholinesterase inhibitor used in the treatment of Alzheimer's disease?

A) Cognex® B) Dilantin® C) Depakote® D) Permax®