Anaemia Flashcards
Causes of Micro Anaemia
FAST
Fe def, AoCD, sideroblastic, Thall
causes of normocytic anaemia
blood loss, AoCD, BM failure, renal F, hypothy, haemolysis, preg
causes of macro anaemia
FAT RBC
fetus (preg), antifolates, hypoThyroid, Reticulocytosis, B12/folate def, Cirrhosis (alco excess/ liver D)
causes of Fe def anaemia
bleeding till proven otherwise
GI bleed - meckel diverticulum, ulcers, polyps
inc utilisation (preg/ growth in kids)
dec uptake (prematurity)
dec absorption (coeliac, post-gastric surg)
intravasc haemolysis (MAHA)
causes of AoCD
chronic inf (TB, osteomyelitis) vasculitis RA malig inflam markers -> dec EPo Receptor prod -> dec EPO
Histology of sideroblastic anaemia
ineffective erythropoiesis -> iron loading in bone marrow -> damage due to Fe deposits in tissues
what can be seen in the bone marrow in sideroblastic anaemia
ring sideroblasts i BM
causes of sideroblastic anaemia
alco excess, lead excess, myelodysplastic disorders
Plasma iron studies - dec Fe, inc TIBC, dec ferritin
Fe def
Plasma iron studies - dec Fe, dec TIBC, inc ferritin
Aocd
Plasma iron studies - inc Fe, dec TIBC, inc ferritin
Chronic haemolysis
haemachromatosis
Plasma iron studies - inc Fe, inc TIBC, normal ferritin
pregnancy
Plasma iron studies - inc Fe, normal TIBC, inc ferritin
sideroblastic