Sections View Full Chapter Figures Tables Videos Full Chapter Figures Tables Videos Supplementary Content ++ Laboratory Variables Relevant to Hematologic Diagnosis (Normal Adult Values) ++ Table Graphic Jump LocationFavorite Table | Download (.pdf) | Print BLOOD CELLS Variable (Common Abbreviations) Units Values Hematocrit (HCT) or Packed cell volume (PCV) mL red cells/dL blood or % M = 42–51 F = 36–46 Hemoglobin (Hb, Hgb) g/dL blood M = 14–18 F = 12–16 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 count, absolute × 1012/L M = 35,000–75,000 F = 25,000–65,000 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 96.1–98.3 Hemoglobin A2 Percent of total hemoglobin 1.2–3.9 Hemoglobin F Percent of total hemoglobin 0.1–1.2 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 Bleeding time Ivy Minutes 3–6 Template Minutes 6–10 Closure time (PFA-100) Seconds <175 Collagen/epinephrine (CEPI) 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 50–160§ mg/L <100 Factor VIII-inhibitor Bethesda units 0–0.5 Factor IX Percent of normal mean 50–150 Mg/L <4.0 Factor X Percent of normal mean 50–150 mg/L <10 Factor XI Percent of normal mean 50–150 mg/L <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 Percent of normal mean 80–120 Immunologic assay mg/dl 22–33 Protein C Percent of normal mean 70–140 μg/mL 3.0–5.0 Activated protein C resistance APC ratio >1.5 Protein S Percent of normal mean 65–140 Total μg/mL 20–25 Free μg/mL 6–10 Free/total ratio Unitless <0.4 Fibrin degradation products (latex particles) μg/mL <20 Platelet Aggregation (in platelet-rich plasma) With collagen (2 μg/mL) Percent of control 70–95... GET ACCESS TO THIS RESOURCE Sign In Username Error: Please enter User Name Password Error: Please enter Password Forgot Username? Forgot Password? Sign in via OpenAthens Sign in via Shibboleth Get Free Access Through Your Institution Contact your institution's library to ask if they subscribe to McGraw-Hill Medical Products. Access My Subscription