National Dental Examining Board of Canada (NDEB) Practice Exam

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Prepare for the National Dental Examining Board of Canada (NDEB) Test. Study with flashcards and multiple choice questions, each question offers hints and detailed explanations. Achieve success in your exam!

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During CPR, external chest compression of an adult male should be how many cm?

  1. 2-3cm

  2. 4-5cm

  3. 5-6cm

  4. 6-7cm

The correct answer is: 4-5cm

During CPR, it is recommended to compress the chest of an adult male between 4-5cm. Options A and C (2-3cm and 5-6cm respectively) are too shallow and may not provide sufficient blood flow to the heart and brain. Option D (6-7cm) is too deep and may cause rib fractures or damage to internal organs. Therefore, option B (4-5cm) is the most appropriate depth for chest compressions during CPR on an adult male.