Medical assistants typically do the following: 1  Record patient history and personal information. 2  Measure vital signs, such as blood pressure. 3  Help the physician with patient examinations.  Give patients injections or medications as directed by the physician and as permitted by state 1  law. Schedule patient appointments.
F. William McNabb III is chairman and chief executive officer of Vanguard. He joined Vanguard in 1986, took on the role of chief executive officer in 2008, and became chairman of the board of directors and the boards of trustees in 2010.
Vanguard's Total Bond Market Index Fund has a low expense ratio of 20 basis points and now offers an even more liquid ETF version in addition to the traditional mutual fund shares. Vanguard also runs the largest stock fund on the planet: its Total Stock Market Index Fund () has over $400 billion in assets.