Express the following common fractions as percents

A 27-year-old male was involved in an altercation and was struck in the ribs with a baseball bat. Assessment reveals intact skin with bruising to the right lateral chest. When palpating this area, pain, instability, and crepitus are all observed. The patient also complains of difficult and painful breathing. The EMT would recognize:

A) Thoracic injury secondary to penetrating trauma B) Chest injury caused by blunt trauma C) Pulmonary injury caused by penetrating trauma D) Chest wall injury caused by acceleration forces

When would you use the mnemonic "Lengthen, lengthen, drop equals Wenckebach"?

A. To differentiate second-degree Mobitz type I heart block from Mobitz type II heart block B. To differentiate second-degree heart block from third-degree heart block C. To differentiate first-degree heart block from left bundle branch block D. To differentiate first-degree heart block from third-degree heart block