Anesthesia Technician Practice Exam

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Prepare for the Anesthesia Technician Test with multiple choice questions, each with detailed explanations and hints. Enhance your knowledge and skills for the exam!

Each practice test/flash card set has 50 randomly selected questions from a bank of over 500. You'll get a new set of questions each time!

Practice this question and more.

What color is the left leg (LL) ECG lead?

Blue
Green
White
Red

The correct answer is: Red

The left leg (LL) ECG lead is designated as red. This color coding is important in order to maintain consistency and accuracy in both patient monitoring and the application of electrocardiography. The placement of leads follows standard conventions set by organizations such as the American Heart Association, and these color codes help prevent errors during ECG procedures. In a typical 12-lead ECG setup, the left leg lead (LL) is represented in red to easily differentiate it from the other leads. For example, the right leg lead is usually green, the right arm lead is white, and the left arm lead is black. This specific color-coding allows healthcare professionals to quickly identify and correctly position the leads during an ECG recording, ensuring the data collected is reliable and providing a clear heart rhythm analysis.