Published: 10 Sep 2024

Blood clotting tests look for proteins in your blood that affect how your blood clots.
Two examples of such medications are heparin and warfarin.
Doctors frequently order blood clotting tests (coagulation tests) such as:
D-dimer test
Detects D-dimer in the blood (a protein fragment formed in the body when a blood clot dissolves)
A normal D-dimer is considered 0.50
As D-dimer is a screening test, a positive D-dimer is a positive screen. There is no critical level for a D-dimer.
Prothrombin time (PT)/INR test
PT test determines how long it takes for a blood clot to form in a blood sample. An INR is a calculation based on PT test results.
PT: 11 to 13.5 seconds
INR: 0.8 to 1.1
Activated partial thromboplastin time test
PT test determines how long it takes for a blood clot to form in a blood sample. Levels that are abnormally high or low could indicate that you're in danger of bleeding or getting blood clots in your blood vessels. An INR is a calculation based on PT test results.
A normal range is between 21 and 35 seconds.Blood clotting tests are also used to track the health of people who take medications to reduce their risk of blood clots.

CBC is used to assess nutritional status, screen for diseases, and ascertain general health conditions. It can aid in the evaluation of signs such as weakness, exhaustion, and bruises and diagnosis of illnesses such as anemia, leukemia, malaria, and infection.
CBC includes:
Total concentration amount of hemoglobin present in the blood (Hgb)
Fraction of blood composed of red blood cells (Hct)
Hemoglobin volume in each RBC (mean corpuscular volume [MCV])
Weight of hemoglobin in each RBC (mean corpuscular hemoglobin [MCH])
The proportion of hemoglobin in each RBC (mean corpuscular hemoglobin concentration [MCHC])
Number of platelets, which are critical to the formation of the clot
MCV, MCH, and MCHC values help diagnose various types of anemia
Normal ranges for a CBC
Normal range Hgb:
Men: 13.0 to 17.0 g/dL
Women: 11.5 to 15.5 g/dL
Hematocrit normal range:
Men: 40 to 55 percent
Women: 36 to 48 percent
Platelet count normal range:
Adult: 150,000 to 400,000/mL
White blood cell normal range:
Adult: 5,000 to 10,000/mL. Among other blood components, this test counts your red blood cells, white blood cells, and platelets. Complete blood count (CBC) is one of the most common blood tests. It frequently occurs as part of a regular checkup.