Axis deviation refers to the movement right or left of the QRS axis from its normal position. If Lead I is positive and Lead aVF is negative, then the position of the QRS axis is which of the following? A Right-axis deviation B Normal axis C Left-axis deviation D Extreme right-axis deviation
Added by Nicole P.
Step 1
- The normal QRS axis lies between -30° and +90°. Show more…
Show all steps
Your feedback will help us improve your experience
Sri K and 57 other Biology educators are ready to help you.
Ask a new question
Labs
Want to see this concept in action?
Explore this concept interactively to see how it behaves as you change inputs.
Key Concepts
Recommended Videos
lead and choose an approximate QRS axis within the 30º range. Occasionally each of the six coronal leads is small and/or isoelectric. The axis cannot be determined and is called indeterminate. This is a normal variant. Questions 1. From which leads were upright R waves recorded? From which electrode (left arm, right arm, left leg, or right leg) and along which axis (-150, -30, 0, 60, 90, 120 degrees) were these leads "looking" at the depolarization of the ventricle? You may need to refer to the Background information to answer these questions. 2. From which leads were inverted R waves recorded? From which electrode (left arm, right arm, left leg, or right leg) and along which axis (-150, -30, 0, 60, 90, 120 degrees) were these leads looking at the depolarization of the ventricle? 3. Which lead is the isoelectric lead? 4. What is the QRS axis of the subject's heart? Is the QRS axis of your subject within the normal range of the QRS axis? Refer to your textbook to find the normal range. 5. Which ECG lead provided the largest R wave for the subject? 6. Which lead is closest to the QRS axis of the heart? Exercise 2: Six Lead ECG from Other Subjects Record or obtain Six Lead ECGs from other subjects and determine the QRS axes of the
Sri K.
Jerelyn N.
Recommended Textbooks
Biology for AP Courses
Objective Biology for NEET
Introduction to General, Organic and Biochemistry
Transcript
Watch the video solution with this free unlock.
EMAIL
PASSWORD