The Food and Drug Administration has warned Baxter International Inc. about alleged quality control deficiencies and other manufacturing flaws at a Florida plant that makes certain dialysis machines.The FDA, which released a copy of a March 23 “warning letter” on Tuesday, faulted Deerfield-based Baxter for failing to take successful corrective actions after FDA inspectors made several visits to the Largo, Fla., facilities.Among its concerns, the FDA said, was that Baxter was late in reporting injuries or other problems linked to its devices."While we are disappointed to receive a warning letter from the FDA, there aren’t any issues the agency cited that we haven’t already been working to address,” said Baxter spokeswoman Deborah Spak.Often, the scores of warning letters the FDA sends out each year result in corrective actions by companies, but the agency can issue civil fines, penalties or other disciplinary actions.