Measurement of gas-carrying capacity of Red Blood Cells (RBCs)
Hemoglobin
Women: 117-160 g/L
Men: 132-173 g/L
Assessment of intrinsic coagulation by measuring multiple clotting factors; longer with use of heparin
Activated Partial Thromboplastin Time (aPTT)
25-35 seconds
Measurement of packed cell volume of RBCs, expressed as a percentage of the total blood volume
Hematocrit
Women: 0.35-0.47
Men: 0.39-0.50
Assay to measure fibrin that is formed as a result of fibrin degradation and clot lysis, used in diagnosis of hypercoagulable conditions (e.g. DIC, pulmonary embolism, DVT)
D-Dimer
< 250 mcg/L
The normal range is 150-400 x 10^9/L
Platelet count
The measurement of the number of platelets available to maintain platelet clotting functions
The normal range is 0.8-1.2
International Normalized Ratio (INR)
Standardized system of reporting prothrombin time (PT) based on a reference calibration model and calculated by comparison of the patient’s PT with a control value
Measurement of the total number of leukocytes
White Blood Cell Count
4.5-11.0 x 10^9/L
Prolonged values for this test indicate that coagulation is inadequate secondary to it's decreased activity
Thrombin Time
Reflection of adequacy of thrombin (17-23 seconds)
Included in the RBC indices
MCV, MCH, MCHC, RBC Morphology
The assessment of extrinsic coagulation by measurement of multiple coagulation factors
Prothrombin Time
11-16 seconds