vitamin b-12 level…

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what the risks are vitamin b-12 level, the level of vitamin b-12, in the blood, blood is drawn, a vein, the elbow, the hand, puncture site is cleaned, antiseptic, an elastic band, around the upper arm to apply pressure, vein to swell, blood, a needle is inserted, vein, blood is collected in an air-tight vial, a syringe, band is removed, restore circulation, once the blood has been collected, needle is removed, puncture site is covered to stop any bleeding, in infants, young children, area is cleansed, antiseptic, punctured, a sharp needle, a lancet, blood collected, pipette, small glass tube, on a slide, onto a test strip, into a small container, a bandage applied, puncture site, any bleeding, fast, 8 hours, consult, the health care provider, using medications, affect test results, colchicine, neomycin, para-aminosalicylic acid, phenytoin, infants, children, test depends on child's age, level of trust, prepare child, infant test, procedure preparation, birth to 1 year, toddler test, procedure preparation, 1 to 3 years, preschooler test, procedure preparation, 3 to 6 years, schoolage test, procedure preparation, 6 to 12 years, adolescent test, procedure preparation, 12 to 18 years, the needle is inserted to draw blood, feel moderate pain, a prick, stinging sensation, some throbbing, this test, often performed, tests, cbc, rbc indices, reticulocyte count, blood smear, a megaloblastic anemia, pernicious anemia, megaloblastic anemia, poor absorption of vitamin b-12, decreased production of intrinsic factor, a substance essential to vitamin b-12 absorption, stomach, the testing, the cause of nervous system disorders, normal values, 200-900 pg/ml, picograms per milliliter, values of less than 100 pg/ml indicate a significant deficiency of vitamin b-12, symptoms likely to be present, vitamin b-12 deficiency, inadequate intake, rare except, a strict vegetarian diet, malabsorption diseases, celiac disease, sprue, lack of intrinsic factor, hypermetabolic state, hyperthyroidism, pregnancy, increased vitamin b-12 levels, uncommon, excessive b-12 is excreted, in the urine, excessive b-12, disorders that affect the levels of proteins that attach to vitamin b-12, in the blood, disorders, liver disease, cirrhosis, hepatitis, myeloproliferative disorders, myelocytic leukemia, additional conditions under which the test performed, delirium, dementia, dementia, due to metabolic causes risks associated, having blood drawn, slight, excessive bleeding, fainting, feeling light-headed, hematoma, blood accumulating under the skin, infection, a slight risk, the skin is broken, multiple punctures to locate veins, in testing, megaloblastic anemias of any sort, serum, red blood-cell folate levels, also obtained, blood test, levels of vitamin b-12 has, become much more accurate, the past few years, fewer false-normal results, biologically active b-12 is measured, a vitamin b-12 deficiency, determined by the schilling test, hemolysis, the blood sample, rupture, the red blood cells, affect test results, veins, arteries vary in size, obtaining a blood sample.