Haem Flashcards
Features of Iron deficiency anaemia ?
koilonychia
atrophic glossitis
post-cricoid webs
angular stomatitis/cheilitis
Symptoms of Iron Deficiency Anaemia?
Fatigue, Dyspnoea, palpitations, headache, angina (IHD already)
Blood film for Iron deficiency anaemia?
Microcytic Hypochromic
Target cells
‘pencil’ poikilocytes
Types of Autoimmune haemolytic anaemia ?
‘warm’ and ‘cold’ types, according to at what temperature the antibodies best cause haemolysis
Test for Autoimmune haemolytic anaemia?
Direct coombs +ve
Warm Haemolytic anaemia features/treatment? Which antibody?
Haemolysis tends to occur in extravascular sites, for example the spleen. Management options include steroids, immunosuppression and splenectomy. Usually IgG
Cold Haemolytic anaemia features/treatment? Which antibody?
Cold AIHA is usually IgM and causes haemolysis best at 4 deg C. Symptoms of Raynaud’s and acrocynaosis.
Causes of warm Haemolytic anaemia?
SLE, Methyldopa, CLL, Lymphoma
Causes of cold haemolytic anaemia?
Neoplasia: e.g. lymphoma
infections: e.g. mycoplasma, EBV
Define anaemia?
Males <13 Females <12
When to refer iron deficiency for cancer pathway?
> 60years or <50 with rectal bleeding or adverse signs
Threshold for anaemia if have ACS vs normally?
<8g/dl normally <7g/dl
TIBC in iron deficiency?
High
TIBC in normocytic?
Normal
TIBC in chronic disease anaemia?
Normal or low
Microcytic not responding to iron?
Sideroblastic
How long continue iron to replenish stores?
3 months
Symptoms of febrile reactions to blood transfusion, what to do?
Fever, chills, pruritis, urticaria ~ 1/1.5 hrs from transfusion
Slow transfusion, give Paracetamol
What blood product is most commonly associated with bacterial contamination?
Platelets due to higher temp storage
Bacterial contamination transfusion symptoms, treatment?
↑Temp, Hypotension, Rigors
Call haematologist, stop transfusion broad abx
Fluid overload with transfusion, symptoms and management?
SOB, Hypoxia, TAchy, JVP and creps. o2 and furosemide.
Haemolytic transfusion reactions symptoms?
minutes: ↑Temp, Agitation, Hypotension, Flushing, Abdo or Chest Pain, Oozing venepuncture sites
Can progress to DIC
Haemolytic transfusion treatment?
Stop transfusion, Check identity/name on unit, Keep IV line open, IV Fluid resus, send blood back to lab, Direct Coombs test
Who should have have irradiated blood? What has happened to it specifically reduced?
Immunocompromised usually, depleted t lymphocytes
Macrocytic anaemia two types? Causes?
Megaloblastic- deficiency
non-=megaloblastic- Alcohol, liver issues, thyroid, pregnancy, drugs(aza)
Signs of macrocytic anaemia (mostly b12/pernicious)?
Stomatitis, glossitis, dizziness and syncope worrying.
Order of replacement of b12/folate and why?
B12 first risk of subacute combined degeneration of the cord.
Sub acute degenration cord triad?
Classic triad: extensor plantar (babinski) (UMN), absent ankle jerk (LMN) absent knee jerk (LMN)
Lemon tinge noted in what disease?
Pernicious anaemia/B12 deficiency
Miocrocytic anaemia with billirubin and reticulocytes?
Thallasaemia
Classical x-ray in B thallasaemia?
Hair on end skull
Haemolytic anaemia bloods?
Unconjugated bilirubin increased, MCV increased
Causes of iron deficiency anaemia?
Loss, low intake, Malabsorption
Ethnicity of thalassaemia patients?
Mediterranean and far east
Beta Thalassaemia trait symptoms?
Mild anaemia which is usually harmless
↓ MCV (“too low for the anaemia”): e.g. <75
β Thalassaemia Major symptoms and treatment?
Severe anaemia
Jaundice
Haemochromatosis >10years of life
Regular transfusions possible Bone marrow transplant
B12 deficiency causes?
↓ Intake Vegan
↓ intrinsic factor Pernicious anaemia
Post-gastrectomy
Terminal ileum Crohn’s
Ileal resection
Bacterial overgrowth
B12 deficiency symptoms?
Glossitis, paraesthesia, neuropathy, optic atrophy
Recent e-coli, low platelets normal clotting, renal failure? Treatment?
Haemolytic uraemic
usually spont resolution
Drugs precipitating G6PD haemolysis?
Broad (Fava) beans
Mothballs (naphthalene)
Infection
Drugs: antimalarials, henna, dapsone, sulphonamides
Diagnosis of sickle cell bloods?
Can be genetic but also Hb 6-9, ↑ retics, ↑ bilirubin
Film: sickle cells and target cells
Aplastic crisis in sickle cell?
Parvovirus, (erythema infectisosum)
Sequestration crisis in sickle?
Splenomegaly, splenic pooling which leads to shock and severe anaemia
DIC blood results?
Prolonged bleeding times for all tests low fibrinogen and low platelets.
Antiphospholipid symptoms?
CLOT
Coag -APTT increased
Livido reticularis
Obstetrics
Thrombocytopaenia
Most common thrombophillia?
Factor 5 leiden (protein c resistance)
Most common clotting disorder?
VWD
↑ APTT, ↑ bleeding time, normal plat
APTT in haemophillia? Symptoms?
Prolonged
Haemarthrosis, muscles bleeding, bruising- male sex
Pancytopaenia?
Aplastic anaemia, Haematological malignancy, HIV, radiation, Drugs-Thyroid, clozapine, thiazide, sulphonamide, methotrex
Acute lymphoblastic leukaemia bloods?
↑WCC: lymphoblasts
↓RBC, ↓PMN, ↓plats
BM aspirate
≥20% blasts
ALL age of onset?
V Young
Acute myeloid leukaemia bloods and age?
65-70 most common leukaemia adults.
WCC- Blasts anaemia and low platelets
BM asirate-Auer rods >20% blasts
Chronic lymphocytic leukaemia age and bloods?
↑ WCC, lymphocytosis
Smear cells
Elderly
CLL features?
Often asymptomatic
Symmetrical painless lymphadenopathy
HepSplenMeg
Anaemia
B symptoms: wt. loss, fever, night sweats
CML symptoms and bloods? Assoc with?
Philadelphia chromosome
↑↑WBC-PolyMorphNeut (granulocytes)and basophils Myelocytes
Features of non-hodgkins?
75% lymphadenopathy symmetrical multiple sites, splenomegaly, wt loss night sweats
Most common non-hodgkins?
B-cell - diffuse large high grade but may be curable
Burkit lymphoma assoc with?
EBV
Treatment of non-hodgkins?
High grade R-CHOP
Hodgkins lymphoma features?
Cervical symmetrical lymphadenopathy
can be alcohol >pain
Hodgkins chemo treatment?
ABVD
Age incidence for hodgkins lymphoma?
Bimodal 20-30 and >60
Backache, anaemia, neutropenia, vertebral fractures?
Multiple myeloma
Myeloma mnemonic?
CRAB Calcium high >2.6 Renal insufficiency Anaemia <10g/dl Bone lesions
Blood film in myeloma? Other bloods?
Roleaux, plasma cells, ESR,
NORMAL ALP
Hypercalcaemia and normocytic anaemia
Anaemia in myeloma type?
Normocytic normochromic
Investigations in myeloma?
Serum/urine electorphoresis (paraprotein spikes) and skeletal survey/whole body low dose ct
Rapid gingival hyperplasia associated with?
AML
How long to eat gluten before TTG?
At least 1 meal for six weeks