NASHVILLE (AP) — HealthStream Inc., which provides Internet-based educational and training content for health care professionals, said Wednesday that it signed an amendment with SunTrust Bank to increase its line of credit to $20 million from $15 million.

The move also extends the availability to July 2012.

"The amendment increases available capital for growth initiatives of the company," said CEO Robert A. Frist Jr. in a statement.

As of Dec. 31, HealthStream had cash balances of about $23.6 million and as of March 30 had no balances outstanding under its $20 million line of credit.