Certified Clinical Medical Assistant Exam Practice Question
Which of the following are extraneous markings that can interfere with the correct interpretation of waveforms on an EKG tracing?
Correct Answer: C
Rationale: Extraneous markings that interfere with EKG waveform interpretation are classified as artifacts. Artifacts can arise from various sources, such as patient movement, electrical interference, or poor electrode contact, leading to misleading readings.
Glitches (A) typically refer to temporary faults in electronic systems but are not a specific term used in EKG context. Smears (B) may indicate blurring of the tracing but are not universally recognized as a category of interference. Lines (D) could refer to unwanted marks but are too vague and do not encapsulate the broader range of disturbances that artifacts represent.
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