The Costal Margin, Used as an Aid in Locating the Correct

question 4

Multiple Choice

The costal margin, used as an aid in locating the correct sternal position for external heart massage during cardiac emergencies, is formed by the inferior aspects of costal cartilages ____________.

• A) 1-3
• B) 4-5
• C) 7-10
• D) 11-12
• E) 12-14

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