Sections View Full Chapter Figures Tables Videos Annotate Full Chapter Figures Tables Videos Supplementary Content ++ Laboratory Variables Relevant to Hematologic Diagnosis (Normal Adult Values) ++ Table Graphic Jump Location|Download (.pdf)|Print BLOOD CELLS Variable (Common Abbreviations) Units Values Hematocrit (HCT) or Packed cell volume (PCV) Percent or mL red cells/dL blood, respectively M = 42–51 F = 36–46 Hemoglobin (Hb, Hgb) g/dL blood M = 14–18 F = 12–15 Red cell count (RBC, RCC) 106/μL or 1012/L M = 4.5–6.0 F = 4.1–5.1 Mean cell volume (MCV) fL/cell M = 80–96 F = 79–94 Mean cell hemoglobin (MCH) pg/cell 27–33 Mean cell hemoglobin concentration (MCHC) g/dL red cells 33–36 Red cell distribution width (RDW) Percent < 15 Reticulocyte count Percent of red cells 0.5–1.5 Reticulocyte hemoglobin (CHr) pg/cell 27–33 Total blood volume (TBV) mL/kg 65–85+; 55–75# Plasma volume (PV) mL/kg 39–44 Red cell mass (RCM) mL/kg 25–35 Platelet count 103/μL or 109/L 175–450 White cell count (WBC, WCC) 103/μL or 109/L 4.8–10.8 Absolute monocyte count 103/μL or 109/L 0.3–0.8 Absolute neutrophil count 103/μL or 109/L 1.8–7.7 Absolute lymphocyte count 103/μL or 109/L 1.0–4.8 CD3-positive lymphocytes 103/μL or 109/L 700–1900 CD4-positive lymphocytes 103/μL or 109/L 400–1400 CD8-positive lymphocytes 103/μL or 109/L 200–700 CD19-positive lymphocytes 103/μL or 109/L 50–375 HEMOGLOBIN ELECTROPHORESIS* Hemoglobin A1 Percent of total hemoglobin 96.1–99.0 Hemoglobin A2 Percent of total hemoglobin 0.8–3.4 Hemoglobin F Percent of total hemoglobin 0.0–1.2 COAGULATION TESTS Prothrombin time (PT) Seconds to clot 12–14 International Normalized Ratio (INR) None 0.8-1.2 Partial thromboplastin time (PTT) Seconds to clot 19–30 Thrombin time Seconds to clot 10–15 Closure time (PFA-100) Collagen/epinephrine (CEPI) Seconds <175 Clot retraction Percent in 1 hour >40 Fibrinogen mg/dL plasma 188–381 D-Dimer ng/mL <400 Factor II, V, and VII Percent of normal mean 50–150 Factor VIII: c activity Percent of normal mean 50–200 Willebrand factor activity Percent of normal mean 60–200§ Willebrand factor antigen Percent of normal mean mg/L 50–160§ ~ 100 Factor VIII-inhibitor Bethesda units 0–0.5 Factor IX Percent of normal mean Mg/L 50–150 ~ 4.0 Factor X Percent of normal mean mg/L 50–150 ~ 10 Factor XI Percent of normal mean mg/L 50–150 ~ 7.0 Factor XII Percent of normal mean 50–150 Factor XIII Percent of normal mean 70–130 α2- antiplasmin Percent of normal mean 80–120 Plasminogen Percent of normal mean 80–120 Antithrombin: Functional assay Immunologic assay Percent of normal mean mg/dL 80–120 22–33 Protein C Percent of normal mean μg/mL 70–140 3.0–5.0 Activated protein C resistance APC ratio >1.5 Protein S Total Free Free/total ratio Percent of normal mean μg/mL μg/mL Unitless 65–140 20–25 6–10 ~ 0.4 Fibrin degradation products (latex particles) μg/mL <20 Platelet Aggregation (in platelet-rich plasma) With collagen (2 μg/mL) With arachidonic acid (0.5 mM) With ADP 5 μM With ADP 10 μM With epinephrine (5 ... Your Access profile is currently affiliated with [InstitutionA] and is in the process of switching affiliations to [InstitutionB]. Please select how you would like to proceed. Keep the current affiliation with [InstitutionA] and continue with the Access profile sign in process Switch affiliation to [InstitutionB] and continue with the Access profile sign in process Get Free Access Through Your Institution Learn how to see if your library subscribes to McGraw Hill Medical products. Subscribe: Institutional or Individual Sign In Error: Incorrect UserName or Password Username Error: Please enter User Name Password Error: Please enter Password Sign in Forgot Password? Forgot Username? Sign in via OpenAthens Sign in via Shibboleth You already have access! Please proceed to your institution's subscription. Create a free profile for additional features.