id	author	title	date	pages	extension	mime	words	sentences	flesch	summary	cache	txt
cord-023168-cd7adns8	Thachil, Jecko	Haematological Diseases in the Tropics	2013-10-21		.txt	text/plain	30224	1724	44	The most useful laboratory measure of iron status Low value is diagnostic in the presence of anaemia Very high values (>100 µg/L) usually exclude iron deficiency' Being an acute-phase protein, it increases in inflammatory conditions, and certain malignancies, making it unreliable Also increased in tissue damage especially of the liver Levels are falsely decreased in vitamin C deficiency and hypothyroidism Erythrocyte zinc protoporphyrin An intermediate in haem biosynthesis and elevated concentrations indicate interrupted haem synthesis due to iron deficiency when zinc is incorporated in place of iron Can be measured on a drop of blood with a portable haematofluorometer Small sample size makes it very useful as a screening test in field surveys, particularly in children, and pregnant women where inflammatory states may not co-exist Red cells should be washed before measurement (serum bilirubin and fluorescent compounds like some drugs can give falsely high values) although not often done Lead poisoning can give falsely high values Rarely acute myeloid leukaemia and sideroblastic anaemia give slightly high values Useful in that it is not increased in thalassaemias WHO recommends normal level >70 µmol/mol haem Iron studies Serum iron concentration represents the iron entering and leaving the circulation.	./cache/cord-023168-cd7adns8.txt	./txt/cord-023168-cd7adns8.txt