The table revises the most recently published data (Normal Reference Laboratory Values. N Engl J Med 1998;339:1063-72).

Well that’s certainly one way to brag about the quality of your app: include the phrase “#1 Rated Medical Reference App” in the title. Naturally, my expectations were pretty high going in ...

Normal Lab Values: Men: .7-1.3, Women: .6-1.1 mg/dl. The ratio of BUN to creatinine should be between 10:1 and 20:1. This test is a blood test that looks at how much creatinine is in the bloodstream.

Your patient’s symptoms are nonspecific, and with normal lab values, she is by definition euthyroid. Given the menorrhagia, fatigue, and brittle nails, start by making sure she is not iron ...

To develop better ways to capture individual patient definitions of “normal” lab values, my colleagues and I in the Higgins Lab at Harvard Medical School examined 20 years of blood count tests from ...