Your blood cells need iron in order to provide your body with oxygen, and if you don’t have sufficient iron, your blood will not perform properly. Other nutritional deficiencies that can affect your blood cel

Your blood cells need iron in order to provide your body with oxygen, and if you don’t have sufficient iron, your blood will not perform properly. Other nutritional deficiencies that can affect your blood cells embrace low levels of vitamin B12, folate, or vitamin C. The American Academy of Pediatrics recommends that this test should be performed on infants between 24 hours and seven days after start. If the initial PKU check produces a optimistic end result, then follow-up exams are carried out to substantiate the diagnosis and to discover out if the elevated phenylalanine levels could additionally be caused by some medical condition apart from PKU.