Plaque indices are used in private practice to measure

The owner of a day care center for adults with Alzheimer's disease calls you to ask about an AED at her facility. Specifically, she asks if she will need a physician to oversee the AED program. Your reply should be:

A) "If you intend to use the AED on anyone under the age of 50 years, a medical director will be needed." B) "A medical director is only needed if you are going to bill insurance companies for the provision of care; if you are not, a medical director is not needed." C) "You will need to have a physician medical director since the AED can only be used with his or her permission under his or her license." D) "If you get a semi-automated AED, you will need a physician medical director. Since fully automated AEDs are easier to use, a medical director is not needed."

According to the Einthoven triangle, lead II is assessed by placing the:

A) negative lead on the left arm and the positive lead on the left leg. B) positive lead on the left leg and the negative lead on the right arm. C) positive lead on the left arm and the negative lead on the right arm. D) negative lead on the right arm and the positive lead on the left leg.