Haematology. Barbara J. Bain
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Mike Leach and Barbara Bain, January 2021
Abbreviations
Full blood count (FBC) components
WBCwhite blood cell countRBCred blood cell countHbhaemoglobin concentrationHcthaematocritMCVmean cell volumeMCHmean cell haemoglobinMCHCmean cell haemoglobin concentration
Others
AAaplastic anaemiaALacute leukaemiaALKanaplastic lymphoma kinaseALLacute lymphoblastic leukaemiaALPalkaline phosphataseALTalanine transaminaseAMLacute myeloid leukaemiaANAantinuclear antibodyAPLacute promyelocytic leukaemiaAPTTactivated partial thromboplastin timeASTaspartate transaminaseATLLadult T‐cell leukaemia/lymphomaBLBurkitt lymphomaccytoplasmicCDcluster of differentiationCHOPcyclophosphamide, doxorubicin, vincristine and prednisoloneCLLchronic lymphocytic leukaemiaCMLchronic myeloid leukaemiaCMMLchronic myelomonocytic leukaemiaCNScentral nervous systemCRPC‐reactive proteinCSFcerebrospinal fluidCTcomputed tomographyDICdisseminated intravascular coagulationDLBCLdiffuse large B‐cell lymphomaDNAdeoxyribonucleic acidEBVEpstein–Barr virusESRerythrocyte sedimentation rateETessential thrombocythaemiaFISHfluorescence in situ hybridisationFDGfluorodeoxyglucoseFLfollicular lymphomaGPgeneral practitionerH&Ehaematoxylin and eosin (stain)HCLhairy cell leukaemiaHLHodgkin lymphomaHLA‐DRhuman leukocyte antigen DRHTLV‐1human T‐cell lymphotropic virus type 1IgimmunoglobulinIgAimmunoglobulin AIgGimmunoglobulin GIgMimmunoglobulin Miuinternational unitLBLlymphoblastic lymphomaLDHlactate dehydrogenaseLGLlarge granular lymphocyteLPDlymphoproliferative disorderMCLmantle cell lymphomaMDSmyelodysplastic syndromeMDS/MPNmyelodysplastic/myeloproliferative neoplasmM:Emyeloid:erythroidMGGMay–Grünwald–Giemsa (stain)MPNmyeloproliferative neoplasmMPOmyeloperoxidaseMRImagnetic resonance imagingNLPHLnodular lymphocyte predominant Hodgkin lymphomaNRnormal rangeNRBCnucleated red blood cellsPETpositron emission tomographyPCRpolymerase chain reactionPRCApure red cell aplasiaPTprothrombin timeR‐CHOPrituximab, cyclophosphamide, doxorubicin, vincristine and prednisoloneRNAribonucleic acidRSReed–SternbergSLEsystemic lupus erythematosusT‐ALLT‐lymphoblastic leukaemiaTdTterminal deoxynucleotidyl transferaseT‐LBLT‐lymphoblastic lymphomaTTthrombin timeuunitWMWaldenström macroglobulinaemia
Normal ranges for commonly used tests (for adults)
FBC and differential count
Males | Females | ||
WBC (× 109/l) | 3.7–9.5 | 3.9–11.1 | |
RBC (× 1012/l) | 4.32–5.66 | 3.88–4.99 | |
Hb (g/l) | 133–167 | 118–148 | |
MCV (fl) | 82–98 | ||
MCH (pg) | 27.3–32.6 | ||
MCHC (g/l) | 316–349 | ||
Neutrophils (× 109/l) | 1.7–6.1 | 1.7–7.5 | |
Lymphocytes (× 109/l) | 1.0–3.2 | ||
Monocytes (× 109/l) | 0.2–0.6 | ||
Eosinophils (× 109/l) | 0.03–0.46 | ||
Basophils (× 109/l) | 0.2–0.29 | ||
Platelets (× 109/l) | 143–332 | 169–358 |
From Bain BJ (2017) A Beginner’s Guide to Blood Cells, 3rd Edn. Wiley Blackwell, Oxford.
Coagulation tests
Prothrombin time | 9–13 s |
Activated partial thromboplastin time | 27–38 s |
Thrombin time | 11–15 s |
Fibrinogen | 2–4.5 g/l |
D dimer | <230 ng/ml |
Other tests
Albumin | 35–50 g/l |
Ferritin | 15–300 μg/l (males); 14–200 μg/l (females) |
Bilirubin | 1–20 μmol/l |
Alanine transaminase | 0–50 u/l |
Aspartate transaminase | 0–40 u/l |
Alkaline phosphatase | 30–130 u/l |
C‐reactive protein | <5 mg/l |
Erythrocyte sedimentation rate | <10 mm in 1 h (males); <20 mm in 1 h (females) |
1 Anaplastic large cell lymphoma with haemophagocytic syndrome
A 50‐year‐old man from another health board was transferred to a local hospital for a surgical biopsy of a mediastinal lymph node. He had presented 6 weeks previously with fever, sweats and weight loss. No infective or neoplastic aetiology had been identified. He had progressive pancytopenia and hyperferritinaemia and a diagnosis of idiopathic haemophagocytic syndrome had been considered. He had already been treated at the base hospital with corticosteroids and etoposide. CT imaging, however, had shown abnormal mediastinal lymph nodes, which would not have been accessible by percutaneous needle biopsy.
On arrival at the local cardiothoracic unit he was clearly unwell. The full blood count showed Hb 90 g/l, WBC 2.5 × 109/l, neutrophils 1.5 × 109/l and platelets 25 × 109/l. The coagulation screen showed PT 18 s, APTT 45 s, TT 18 s, fibrinogen 1.4 g/l and D dimer 5500 ng/ml (NR <230). Serum ferritin was >10 000 μg/l. The anaesthetic team phoned to ask for advice regarding management of the coagulopathy prior to surgery. The blood film showed rouleaux