Anaemia Flashcards
What is different classifcations for anaemia?
Hb<13g/dL men and <12 in women over 15 years
What are RF for anaemia?
- Extremes of age
- Female sex
- Lactation
- Pregnancy
What causes microcytic anaemia?
- Iron deficiency anaemia
- Thalassaemia
- Sideroblastic anaemia
- Anaemia of chronic disease
- Sickle cell anaemia
What causes normocytic anaemia?
- Acute blood loss
- Anaemia of chronic disease
- Bone marrow failure
- Renal failure
- Hypothyroidism
- Haemolysis
- Pregnancy
What causes macrocytic anaemia?
- B12 or folate deficiency
- Alcohol excess
- Reticulocytosis
- Cyotixc
- Myelodysplastic syndromes
- Marrow infiltration
- Hypothyroidism
- Antifolate drugs
What are the signs of haemolytic anaemia?
- mildly jaundice
- normally normocytic
- splenomegaly
- Anaemia
What would blood results for haemolytic anaemia show?
- Increased LDH
- Haemoglobinuria
- Haemosiderinaemia
- Decreased haptoglobins
What are hereditary causes of haemolytic anaemia?
- membrane (hereditary spherocytosis)
- haem (thalassaemias, sickle cell)
- enzymes (G6PD defici)
What are acquired causes of haemolytic anaemia?
- autoimmune
- drugs
- MAHA (fibrin strands in circulation and when RBCs pass through they get damaged)
- Infection (malaria)
What are symptoms and signs of anaemia?
Depends on cause:
- Fatigue
- Dyspnoea
- Headache
- Faintness
- Palpitations
- Pallor
What are signs and symptoms of anaemia if severe?
- tachycardia
- ejection systolic murmur
- cardiac enlargement
- later heart failure
- increased resp rate
What are investigations for anaemia?
- Blood film
2. Ferritin
What is the management plan for anaemia?
- Blood transfusion is Hb<70g/L and acute
- Chronic: iron supplements (ferrous sulfate 200mg/8h)
- Give BT very slowly in heart failure
What are causes of reduced uptake IDA?
- IBD
- Malnutirtion
- Coeliac
- Achlrohydria
What are the causes of increased loss IDA?
- GI malignancy
- IBD
- menstruation
- Peptic ulcer
What are causes of increased demand IDA?
- Pregnancy
2. Breastfeeding
In anaemia of chronic disease what are levels of ferritin and TIBC?
- high/normal ferritin
- low TIBC
(acute phase protein so high during infections)
In IDA what are levels of ferritin and TIBC?
- low ferritin
2. high TIBC
What would you see on a blood film for IDA?
- Ansio-Poikilocytosis
- Pencil cells
- Hypochromic and microcytic
What is TIBC?
Transferrin/Total Iron binding capacity it means the same as Transferrin level
What are symptoms of IDA?
- Angular cheilitis
- Koilonychia
- Pale
- Weight loss
- Stomach issues
What are causes of IDA?
- Reduced uptake
- Increased loss
- Increased requirement
What is the triad for colon cancer?
- Unexplained IDA
- Change in bowel habit
- PR bleeding
(+FLAWS)
What type of anemia is aneamia of chronic disease?
usually a normocytic anaemia but can present as microcytic