Dr. Hare answers the question: 'Must I Repeat BNP Blood Tests?' — -- Question: Should the BNP blood test be repeated at each visit to my doctor, or at all? Answer: So the BNP test is a blood test ...

SAN FRANCISCO (MarketWatch) -- Abbott on Wednesday said it has received 501(k) clearance from the Food and Drug Administration to market its i-STAT BNP cartridge, a diagnostic test used to assess the ...