Here we go, first question: Which of the following actions should a medical assistant take when preparing a patient for Holter monitoring? So, real quick as a review, what is Holter monitoring? A Holter monitor is a little device that is worn around the neck with electrodes attached to the chest. It records the heart rhythms continuously over a period of 24 to 48 hours. The patient wears it at home and continues normalactivities during monitoring, but they need to avoid showering to keep the monitor dry. When the patient comes back to the medical office, the device is analyzed for abnormal electrical rhythms like arrhythmias or abnormal patterns. The test is non-invasive and requires minimal effort from the patient. Now back to the question. A medical assistant who's preparing a patient for Holter monitoring must do which of the following? ● A. Dry and abrade the patient's skin at the site of electrode placement. This means the assistant will lightly rub the area with a dry gauze to remove any oils and roughen the skin surface for the electrode to stick in place. ● B. Clean the skin with iodine. Iodine is not necessary for electrode application and may interfere with adhesion. ● C. Adjust the treadmill to a 15-degree angle. Treadmill adjustment is not relevant to Holter monitoring. This is typically done during a cardiac stress test, which is different from Holter monitoring. ● D. Trim any hair in the area. If there is hair in the area of the electrode placement, it should be shaved, not trimmed. The electrode needs good contact with the skin for proper conduction. Next question: A medical assistant is studying infectious diseases and their causative agents. Which of the following microorganisms is responsible for the onset of chickenpox? The answer is B. Varicella zoster virus (VZV) . This virus causes chickenpox and can also reactivate later in life to cause shingles, a painful rash. Other answer choices: ● A. Treponema pallidum causes syphilis. ● C. Streptococcus pyogenes is often the cause of strep throat and impetigo. ● D. Escherichia coli (E. coli) is a common cause of food poisoning. Next question: Which characteristics can help identify psoriasis? Psoriasis is a chronic skin condition characterized by red, scaly patches on the skin. It is an autoimmune disorder that can cause itching and discomfort. Answer choices:
● A. Red and scaly skin. (Correct) ● B. Dry and flaky skin. ● C. Raised and itchy skin. ● D. Smooth and firm skin. Next question: A medical assistant is administering an intramuscular injection. Which needle size should the assistant use? For an intramuscular injection, a needle size of half to two inches and 21 gauge is recommended. The needle is inserted at a 90-degree angle into the muscle. Next question: According to standard guidelines, at what point should the tourniquet be removed during a venipuncture? This question requires knowledge of proper venipuncture techniques. The tourniquet should be removed after the needle is inserted and blood flow is established . This allows for a smooth blood draw.