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laboratory. diagnostics. 实验诊断学. 临床. 选择检验项目(筛选). 分析检验结果. 进一步选择检验项目(鉴别、诊断). 诊断. 血液一般检查. general examination of blood. RBC neutrophil hematocyte eosinophil (45%) WBC basophil blood monocyte platelet lymphocyte Fg plasma water (55%) serum - PowerPoint PPT Presentation
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general examination of blood
RBC neutrophil hematocyte eosinophil 45% WBC basophilblood monocyte platelet lymphocyte Fg plasma water 55% serum solid element
1.blood cell counterythrocyte countmethod reference interval clinical significanceleukocyte countplatelet countreticulocyte count
1)
(1)()
0.38ml 20ul
Neubauer
3mm WBC WBC
WBC WBC
1mm WBC/L=N/41010620
(2)automated hematology analyzer,AHAprincipal of coulter hematology ststemhistogram
erythrocyte histrogam
normalcyte
microcyte macrocyte
36 360 fl
leukocyte histogram
L M N 35 90 160 450 fl
platelet histogram
2 20 fl
3.5~51012/L 4~5.51012/L2)
1anemia
2
granulocyte poolMitotic poolMaturation poolStorage poolMargin poolCirculating pool
10 Bone marrow 10h 1~2)
4~10109/L
2.determining the concentration of hemoglobinHemoglobin Structuremethodhemiglobincyanide (HiCN)method
THE NORMAL HUMAN HEMOGLOBENS
HemoglobinGlobin ChainsMajor SourceEmbryoNeonateAdult%%%Gower12/2Yolk sac5000Gower22/2Yolk sac2500Portland2/2Yolk sac2500Hb F2/G2aLiver,spleen07512/A2Hba2/2Bone marrow02597HbA22/2Bone marrow013
120160g /L110150g/L170200g/L7094.2122.2g/L86.5111.8g/L
layer after blood centrifuged 3. hematocrit(packed cell volume) definition Relative volume of blood occupied by erythrocytes. An average figure for humans is 45 per cent, i.e. A packed red cell volume of 45ml in 100ml of blood.
0.470.04 0.420.05 3HematocritCentrifugingHematocrit is % of total volume made of cellsAHAHCT=RBCMCV
4.erythrocyte indicesMean corpuscular volume MCV=Hct1031012/RBC fL 80~90fLmean corpuscular hemoglobin MCH=Hb1012/RBCPg 27~32Pgmena corpuscular hemoglobin concentration MCHC=Hb/Hct 320~360
MCV(fl) MCH(pg) MCHC (%) >100 >31 32-36
82-95 27-31 32-36
5.red blood cell volume distribution width, RDWCV 11.6%14.6%
1) 1983BessmanMCVRDW 2)iron deficiency anemia, IDA RDW95% 3) RDW-RDW
6.Erythrocyte sedimentation rate(ESR310min40minThe ESR measures the distance a red blood cell falls in a vertical tube over a given period of time.
1)2) () 18~50010mm/h020mm/h >65510mm/h
3HIVESRSLEESRNHLHLM
7. reticulocyte(Ret ribomucleic acidRNAbrilliant cresyl blue79mICSH4:0.20.3IV0.70.8III
1) 2) -YRNAflow cytometryFCM 3)
0.005~0.015 (24~84)109/L
RetRctRct%mean reticulocyte volume, MCVrreticulocyte hemoglobin distribution width , HDWrreticulocyte hemoglobin content , CHrmean reticulocyte hemoglobin concentration , MCHCrLFRMFRHFRreticulocyte maturity index RMIRMI=MFR+HFR/LFR100
1 122 Ret3 clinical significance of reticulocyte count
8blood film examinationmaking and staining blood film:
obseve erythrocyte form and distributionobserve leukocyte formobserve platelet formobserve parasite
observe erythrocytecoloursizeshapeabnormal structure normal erythrocytered cell observed under electric microscope
(rouleaux formation)
observe leukocytedifferential leukocyte count abnormal white cell
(5%)10%25%1)shift to the left()
2)shift to the right53%
(1)(neutrophilia)70%7l09/L
(1020) l09/L(2030) l09/L
()1236h ,10l09/L12d112h(1020) l09/L
(acute myelogenous leukemiaAML)(acute lymphocytic leukemiaALL)(1050) l09/L100l09/L10%(100600) l09/L 50l09/L
2neutropenia l09/Lgranulocytopenia0.5l09/L(agranulocytosis)
12(aleukemic leukemia)34systemic lupus erythematosusSLE5
4
/
1DhlePelgerHuetChediakHigashiMayHegglinAlder-Reilly
21abnormal lymphocyte23ALLCLL
3(plasma cellflame cell
Dacie and Lewis PRACRICAL HAEMATOLOGY TENTH EDITIONClinical Laboratory MedicineKenneth D. McClatchey
?Coulter,???Hct??Ret???
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