After preparing the ECG machine, you explained the procedure to Mrs. Thomas, connected the electrodes, and began the tracing, as shown in the picture. You rechecked the electrodes and they are all placed correctly. None of the wires are loose. However, you notice that Mrs. Thomas's skin smells fragrant, as though she has used a body lotion recently. Which of the following describes the problem, its possible cause, and the correct solution?
a) Problem: Artifacts on the ECG tracing; Possible Cause: Interference from body lotion; Solution: Wipe the electrode sites with alcohol pads before reapplying electrodes.
b) Problem: Electrical malfunction of the ECG machine; Possible Cause: Electrodes not making proper contact; Solution: Replace electrodes with new ones.
c) Problem: Physiological anomaly in Mrs. Thomas; Possible Cause: Sensitivity to electrode materials; Solution: Change to hypoallergenic electrodes.
d) Problem: ECG machine calibration error; Possible Cause: Environmental interference; Solution: Reset the ECG machine and recalibrate.