iron deficiency W5 Flashcards
what does the word anaemia mean
lack of blood
what does iron deficiency result in
reduced iron intake
increased loss of iron
reduced iron absorption
what can lead to reduced iron absorption
coeliac
drugs
inflammatory bowel disease
what can increase loss of iron
urinary tract
blood donation
bowel
how much iron is absorbed once consumed
5-10%
what is iron absorption
iron enters the stomach and exposed to stomach acid
(Fe2+) oxidised to (Fe3+)
low pH from gastric acid converts back to soluble Fe2+ ion
absorbed in duodenum and (small bowel)
what enhances iron absorption
vitamin C
what things can reduces iron absorption
calcium - cows milk
tannins (tea)
antacids
what is an erythrocyte
red blood cell
what is the role of red blood cells
transport o2 to tissues and returns CO2 from tissue to lungs
what do RBC contain
haemoglobin that carry CO2 and O2
what is responsible for the red in RBC
haemoglobin
how does low iron lead to anaemia
low iron -> low haemoglobin -> low red cells -> anaemia
how does low iron lead to anaemia
low iron -> low haemoglobin -> low red cells -> anaemia
what 2 things store iron
Ferritin
haemosiderin
