A claim that is manually reviewed by an insurance carrier can be denied for lack of required preauthorization

________—Contagious bacterial disease that mainly affects the lungs

Fill in the blank with correct word.

Which of the following problems can cause wandering baseline on the ECG tracing?

A. Improperly applied electrodes or poor skin preparation B. Electrical interference C. Patient talking while the ECG is being recorded D. Improper grounding