INTRODUCTION
Iron is most important among the minerals.it is the most common deficiency among females.Adult human body has about 3-4 gm,,in that 60-70% is present in blood and the remaining part in liver as storage
IMPORTANT FUNCTIONS
- It is essential in formation of hemoglobin
- It regulates the body temperature
- Muscle activity is dependent on the status of iron
- It helps in catacholamine metabolism
- It boosts up immune system
- It is a constituent of myoglobin,cytochromes, catalyses and certain enzymes
- The most important point ,it helps in oxygen transport and cell respiration
SOURCES
Animal origin haem iron-Liver,meat,poultry and fish.They are readily absorbed due to absence of inhibitors
Plant origin no haem iron-Cereals,green leafy vegetables,legumes,nuts,jaggery. Absorption is hampered by inhibitors ie,phytates,oxalates,carbonates,phosphates and dietery fibers
FACTORS WHICH HELP IN IRON ABSORPTION
Ascorbic acid is a promoter ,which helps absorption of iron.Absorption is more when there is enhanced demand.
STORAGE
Stored in
- Liver
- Spleen
- Bone marrow
- Kidney
MODES OF IRON LOSS
- Hemorrhage-Physiological -menstruation,child birth-pathologically by hook worm ,malaria,hemorrhoids,peptic ulcer
- Basal losses-urine,sweat,bile,IUCD
STAGES OF IRON DEFICIENCY
- 1st stage-decreased iron store
- 2nd stage-latent iron deficiency ie exhausted iron store
- 3rd stage-iron deficiency in blood ie Anemia
Anemia-mild 10-11.9 gm%
Moderate – 8-9.9 gm%
Severe – below 8 gm %
CLINICAL FEATURES
- Malaise
- Breathlessness
- Weight loss
- oedema
- pallor
- angular stomatitis
- glossitis
- brittle finger nails
- bald tngue
DIAGNOSIS
Blood test
- Hb% Normal value 12-14 g%-females,14-16 g% in males
- serum iron concentration 0.8-1.8 mg/L normal
- serum ferritin value below 10 mcg/L indicate absence of stored iron
- serum transferin saturation -it should be above 16%,normal is 30%
Prepared by: Dr SAJNA HAMZA A
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