A medical assistant should take which of the following actions when placing electrodes on a patient for an EKG?
Place the arm electrodes facing downward.
Place the electrodes over bony prominences when possible.
Place the leg electrodes downward.
Place the chest electrodes in a straight line just below the nipple.
The Correct Answer is A
A. Place the arm electrodes facing downward. The arm electrodes should be placed with the tabs facing downward to reduce the risk of artifacts on the EKG tracing caused by movement or improper lead contact.
B. Place the electrodes over bony prominences when possible. Electrodes should not be placed over bony prominences, as this can interfere with the accuracy of the EKG reading. Instead, they should be placed on soft tissue.
C. Place the leg electrodes downward. Leg electrodes should also be placed with the tabs facing downward to prevent artifacts, similar to the arm electrodes.
D. Place the chest electrodes in a straight line just below the nipple. Chest electrodes should be placed according to specific anatomical landmarks, not in a straight line, to ensure accurate heart rhythm tracing.
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Related Questions
Correct Answer is D
Explanation
A. Take the patient's pulse for 5 seconds and multiply by 10: Measuring for 5 seconds and multiplying by 10 is less accurate due to the short measurement time.
B. Take the patient's pulse for 15 seconds and multiply by 2: While this method is more accurate than taking it for 5 seconds, the recommended practice is to measure for 30 seconds for better accuracy.
C. Take the patient's pulse for 30 seconds and multiply by 4: This would be used to determine a pulse rate per minute from a 15-second measurement, not 30 seconds.
D. Take the patient's pulse for 30 seconds and multiply by 2: This method provides a precise measurement of the pulse rate, as taking the pulse for 30 seconds and then multiplying by 2 gives the number of beats per minute.
Correct Answer is D
Explanation
A. Have the patient sit upright: The patient should be kept in a position that promotes blood flow to vital organs; sitting upright may exacerbate shock.
B. Keep the patient cool: The patient should be kept warm to help maintain body temperature and prevent further complications.
C. Give fluids to the patient orally: In cases of shock, fluids should be administered intravenously by medical professionals to ensure proper management.
D. Elevate the patient's feet 8 to 12 inches: Elevating the patient's feet helps to increase blood flow to the vital organs by promoting venous return to the heart.
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