Page 45 - ractice Exam Questions and rationales

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Americans from health, safety and security threats, both foreign and in the U.S.A. The FDA is
responsible for protecting the public health by assuring the safety, efficacy, and security of
human and veterinary drugs, biological products, medical devices, the nations food supply,
cosmetics, and products that emit radiation. The EPA demonstrates the government's
commitment to protecting public health and the environment.
Which of the following is the best way to correct AC interference on an ECG?

A. Ask the patient not to move while performing the test.

B. Check that the patient does not have a cell phone close by.

C. Move the patient to a quiet room.

D. Offer the patient a blanket if she is cold.

Your response:
Check that the patient does not have a cell phone close by.
Correct response:
Check that the patient does not have a cell phone close by.
Rationale: AC is alternating current interference and it can be caused by a nearby electrical
device (such as a cell phone). Patient movement (either voluntary or shivering from the cold)
can cause other artifact on an ECG, but not the same as AC interference. Moving the patient to a
quiet room would not alleviate AC interference.
The medical assistant should administer nitroglycerin by which of the following methods?

A. buccal

B. sublingual

C. intramuscular

D. intradermal

Your response:
sublingual
Correct response:
sublingual
Rationale: The medical assistant should administer the nitroglycerin sublingually, which is done
by placing the tablet under the patient’s tongue and letting it dissolve. Taking nitroglycerin in
this form is typically done when the patient is experiencing acute angina, because it is easily
absorbed by the body when taken sublingually. The buccal area refers to the area between the
cheek and the gums, and intramuscular requires the medication to be injected into one of the
major muscles, such as the deltoid in the arm or the vastus lateralis in the leg. Intradermal
administration means injecting the medicine into the dermis (the outer layer of skin).
The medical assistant is assisting a physician with an I & D of a gangrenous abscess. In