Parameter penting Hb F: 12.1 –15.1; M: 13.8-17,3 gm/dl (12-18 g/dl) Mean corpuscular volume...
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Transcript of Parameter penting Hb F: 12.1 –15.1; M: 13.8-17,3 gm/dl (12-18 g/dl) Mean corpuscular volume...
![Page 1: Parameter penting Hb F: 12.1 –15.1; M: 13.8-17,3 gm/dl (12-18 g/dl) Mean corpuscular volume (MCV)N: 80-100 fl Mean corpuscular hemoglobin concentration.](https://reader033.fdocuments.in/reader033/viewer/2022051214/56649ef65503460f94c0a2e3/html5/thumbnails/1.jpg)
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Parameter pentingHb F: 12.1 –15.1; M: 13.8-17,3 gm/dl (12-18 g/dl)
Mean corpuscular volume (MCV) N: 80-100 flMean corpuscular hemoglobin concentration
(MCHC) N: 31-37 g/dl
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IRON DEFICIENCY ANEMIAIRON METABOLISM
ABSORPTION IN DUODENUMTRANSFERRIN TRANSPORTS IRON TO THE
CELLSFERRITIN AND HEMOSYDERIN STORE IRON
10% of daily iron is absorbed
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Most body iron is present in hemoglobin in circulating red cells
The macrophages of the reticuloendotelial system store iron released from hemoglobin as ferritin and hemosiderin
Small loss of iron each day in urine, faeces, skin and nails and in menstruating females as blood (1-2 mg daily)
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IRON METABOLISMIron concentration (Fe)
N: 50-150 g/dl
Total Iron Binding Capacity N: 250-450 g/dl
Transferrin saturationTransferrin receptor concentrationFerritin concentration
N: 50-300 g/l
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Distribution of Iron in Adults.
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IRON DEFICIENCY ANEMIAETIOLOGY:
CHRONIC BLEEDING MENORRHAGIA PEPTIC ULCER STOMACH CANCER ULCERATIVE COLITIS INTESTINAL CANCER HAEMORRHOIDS
DECREASED IRON INTAKE INCREASED IRON REQUIRMENT (JUVENILE
AGE, PREGNANCY, LACTATION)
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IRONCauses of Iron Deficiency
Blood LossGastrointestinal TractMenstrual Blood LossUrinary Blood Loss (Rare)Blood in Sputum (Rarer)
Increased Iron UtilizationPregnancyInfancyAdolescencePolycythemia Vera
MalabsorptionTropical SprueGastrectomyChronic atrophic gastritis
Dietary inadequacy (almost never sole cause)Combinations of above
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IRON DEFICENCY - STAGESPrelatent
reduction in iron stores without reduced serum iron levels Hb (N), MCV (N), iron absorption (), transferin
saturation (N), serum ferritin (), marrow iron ()Latent
iron stores are exhausted, but the blood hemoglobin level remains normal Hb (N), MCV (N), TIBC (), serum ferritin (),
transferrin saturation (), marrow iron (absent)Iron deficiency anemia
blood hemoglobin concentration falls below the lower limit of normal Hb (), MCV (), TIBC (), serum ferritin (), transferrin
saturation (), marrow iron (absent)
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IRON DEFICIENCY ANEMIAGENERAL ANEMIA’S SYMPTOMS:
FATIGABILITY DIZZENES HEADACHE SCOTOMAS IRRITABILITY PALPITATION
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CHARACTERISTICS SYMPTOMS GLOSSITIS, STOMATITIS DYSPHAGIA ( Plummer-Vinson syndrome) ATROPHIC GASTRITIS DRY, PALE SKIN SPOON SHAPED NAILS, KOILONYCHIA, BLUE SCLERAE HAIR LOSS PICA (APETITE FOR NON FOOD SUBSTANCES
SUCH AS AN ICE, CLAY) SPLENOMEGALY (10%)
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IRON DEFICIENCY ANEMIAMCV
MCH
MCHC
Fe
TIBCTRANSFERIN SATURATIONFERRITIN
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IRON DEFICIENCY ANEMIACUREORAL
200 mg of iron daily 1 hour before meal (e.g. 100 mg twice daily)
How long? 14 days + (Hg required level – Hg current level) x 4
half of the dose - 6 – 9 months to restore iron reserve
Absorption is enhanced: vit C, meat, orange juice, fish is inhibited: cereals, tea, milk
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IRON DEFICIENCY ANEMIACUREPARENTERAL IRON SUBSTITUTION
Bad oral iron tolerance (nausea, diarrhoea)Negative oral iron absorption testNecessity of quick management50 - 100 mg dailyI.v only in hospital (risk of anaphilactic shock)I.m in outpatient department iron to be injected (mg) = (15 - Hb/g%/) x body
weight (kg) x 3