During the ____ phase of wound healing, which starts on about day two and may last three weeks, fibroblasts start to form a bed of collagen and rudimentary tissue.

A differential white blood cell count ("diff") is done using a microscope with a bright light and ________ × magnification with an oil immersion slide.

A. 10 B. 100 C. 1,000 D. 10,000

Which type of AV block is sometimes reported with a ratio of P waves to QRS complexes?

A. Third-degree AV block B. Second-degree AV block, Mobitz type II C. Second-degree AV block, Mobitz type I D. First-degree heart block