Haemotology Conditions A Flashcards
Deep Vein Thrombosis - Description
blood clot in deep veins (esp. legs)
Deep Vein Thrombosis - Risk Factors (Change in Blood Flow) (4)
circulatory stasis
1) surgery
2) leg fracture —> plaster of Paris
3) long haul flight
4) obesity
Deep Vein Thrombosis - Risk Factors (Change in Blood Vessel) (2)
endothelial damage
1) smoking
2) hypertension
Deep Vein Thrombosis - Risk Factors (Change in Blood Constituents) (6)
1) pregnancy
2) oral contraceptive
3) hormone replacement therapy
4) dehydration
5) polycythaemia
6) inherited thrombophilia
Deep Vein Thrombosis - Signs (6)
1) calf warmth (calor)
2) calf tenderness (dolor)
3) calf erythema (rubor)
4) calf swelling (tumor)
5) fever (mild)
6) pitting oedema
Deep Vein Thrombosis - Complications (1)
1) pulmonary embolism
Deep Vein Thrombosis - Diagnosis (Well’s Score) (9)
≥2 DVT likely —> imaging, <2 DVT unlikely —> D-dimer
1) active cancer
2) differential calf swelling (>3cm)
3) swelling of entire leg
4) pitting oedema
5) prominent superficial veins
6) localised deep venous system pain
7) paralysis, paresis, recent cast immobility
8) recent bed rest >3 days or major surgery with 12 weeks
9) previous DVT
Deep Vein Thrombosis - Management (2/3/0)
conservative 1) compression stockings 2) physical activity medical 1) treat underlying cause 2) LMW heparin 3) warfarin
Malaria - Description
infection by Plasmodium genus
Malaria - Causes (5)
1) Plasmodium falciparum
2) Plasmodium ovale
3) Plasmodium vivas
4) Plasmodium malariae
5) Plasmodium knowlesi
Malaria - Symptoms (7)
1) fever (inc. rigor)*
2) headache
3) myalgia
4) fatigue
5) abdominal pain
6) vomiting
7) diarrhoea
Malaria - Signs (4)
1) hepatomegaly
2) splenomegaly
3) jaundice
4) dark urine (black water fever)
Malaria - Complications (Severe Falciparum) (5)
1) sepsis
2) anaemia
3) cerebral pathology
4) acute respiratory distress syndrome
5) acute kidney injury
Malaria - Investigations (2/0)
initial
1) blood smear microscopy (Giemsa stain)
2) parasite antigen rapid diagnostic test
Malaria - Management (3/2/0)
conservative 1) insect repellent 2) bed nets 3) long-sleeved clothes medical 1) chloroquine 2) artesunate (severe falciparum)
Anaemia - General Description
decreased blood haemoglobin concentration
Anaemia - Causes (Microcytic) (2)
1) iron deficiency (most common)
2) thalassaemia
Anaemia - Causes (Normocytic) (6)
1) chronic disease (2nd most common)
2) combined haemanitic deficiency (Fe + B9)
3) pregnancy
4) blood loss
5) kidney disease
6) sickle cell disease
Anaemia - Causes (Macrocytic) (6)
1) B9 deficiency
2) B12 deficiency (inc. pernicious)
3) liver disease (inc. alcohol)
4) hypothyroidism
5) bone marrow failure
6) chemotherapy
Anaemia - General Symptoms (7)
1) fatigue
2) headache
3) angina
4) palpitations
5) dyspnoea
6) anorexia
7) claudication
Anaemia - General Signs (3)
may be absent even if severe
1) pallor
2) tachycardia
3) functional systolic ejection murmur
Anaemia - General Investigations (8)
1) FBC
2) B9
3) B12
4) ferritin
5) U&E
6) LFT
7) TSH
8) blood film
Anaemia - General Complications (2)
1) heart failure
2) infection risk
Anaemia - General Management (0/1/0)
medical
1) treat underlying cause
Iron Deficiency Anaemia - Description
decreased blood haemoglobin concentration due to iron deficiency
Iron Deficiency Anaemia - Causes (6)
1) poor dietary intake
2) malabsorption (e.g. Coeliac disease, Crohn’s disease)
3) GI bleed
4) menorrhagia
5) pregnancy
6) hookworm (most common WW)
Iron Deficiency Anaemia - Symptoms (7)
1) fatigue
2) headache
3) angina
4) palpitations
5) dyspnoea
6) anorexia
7) claudication
Iron Deficiency Anaemia - Signs (8)
may be absent even if severe
1) pallor
2) tachycardia
3) functional systolic ejection murmur
4) brittle hair
5) brittle nails
6) koilonychia (spoon shaped nails)
7) atrophic glossitis (tongue papillae atrophy, i.e. smooth tongue)
8) angular cheilitis (mouth corner ulcers)
Iron Deficiency Anaemia - Complications (3)
1) heart failure
2) infection risk
3) pregnancy problems
Iron Deficiency Anaemia - Investigations (2/0)
initial
1) FBC (microcytic anaemia)
2) iron studies (low iron, low ferritin)
Iron Deficiency Anaemia - Management (1/3/1)
conservative 1) high dietary iron (e.g. red meat, spinach) medical 1) treat underlying cause 2) ferrous sulphate (PO —> IV) 3) ascorbic acid (increases absorption) surgery 1) red cell transfusion (2nd line)
Folate Deficiency Anaemia - Description
decreased blood haemoglobin concentration due to folate deficiency
Folate Deficiency Anaemia - Causes (5)
1) poor dietary intake (poverty, alcohol, elderly)
2) malabsorption (e.g. Coeliac disease, Crohn’s disease)
3) pregnancy
4) increased cell turnover (e.g. malignancy, inflammatory disease, haemolysis, dialysis)
5) antifolate drugs (e.g. methotrexate, trimethoprim)
Folate Deficiency Anaemia - Risk Factors (5)
1) poverty
2) Coeliac disease, Crohn’s disease
3) alcohol
4) pregnancy
5) elderly
Folate Deficiency Anaemia - Symptoms (7)
1) fatigue
2) headache
3) angina
4) palpitations
5) dyspnoea
6) anorexia
7) claudication
Folate Deficiency Anaemia - Signs (4)
may be absent even if severe
1) pallor
2) tachycardia
3) functional systolic ejection murmur
4) atrophic glossitis (tongue papillae atrophy, i.e. smooth tongue)
Folate Deficiency Anaemia - Complications (3)
1) heart failure
2) infection risk
3) pregnancy problems (spina bifida)
Folate Deficiency Anaemia - Investigations (2/3)
initial
1) FBC (macrocytic anaemia)
2) blood film (hypersegemented neutrophils)
consider
1) serum folate (low)
2) erythrocyte folate (low)
3) bone marrow biopsy (megaloblastic marrow)
Folate Deficiency Anaemia - Management (0/3/0)
medical
1) treat underlying cause
2) folic acid + B12 supplement (4 months)
3) prophylactic folic acid (pregnancy)
Haemolytic Anaemia - Description
decreased blood haemoglobin concentration due to erythrocyte haemolysis
Haemolytic Anaemia - Causes (6)
1) hereditary spherocytosis (most common in Northern Europeans)
2) glucose-6-phosphate dehydrogenase deficiency
3) α thalassaemia
4) β thalassaemia
5) sickle cell disease
6) autoimmune haemolytic anaemia
Haemolytic Anaemia - Pathophysiology (5)
1) premature breakdown of erythrocytes
2) increased erythropoesis by bone marrow to compensate (up to 6-8 times)
3) premature reticulocytes are released by bone marrow
4) premature breakdown of erythrocytes exceed compensation
5) anaemia