Final answer:
The normative values for Prothrombin time range between 11 and 13.5 seconds, INR from 0.8 to 1.2, hematocrit ranges for females are 37-47% and for males are 42-52%, and platelet counts range from 150,000 to 450,000 per microliter of blood. These values are essential for diagnosing blood disorders and must be interpreted in context.
Step-by-step explanation:
The normative values for various blood tests that assess coagulation and blood composition are crucial clinical indicators of a patient's health status. For the Prothrombin time (PT), normal reference ranges are typically between 11 and 13.5 seconds. The International Normalized Ratio (INR) is a standardized measure of the PT, with normal values being typically around 0.8 to 1.2 for individuals not on anticoagulant therapy.
The hematocrit measures the volume of red blood cells compared to the total volume of blood. Normal hematocrit values for females range from 37 to 47 percent, with a mean value of 41 percent, whereas for males, they range from 42 to 52 percent, with a mean of 47 percent. When considering a patient's hematocrit, for instance, a value of 42 percent would imply that approximately 58 percent of the patient's blood is plasma (100 - 42 = 58).
Lastly, normal platelet counts range from 150,000 to 450,000 platelets per microliter of blood. Deviations from these normal values can indicate potential health issues, including bleeding disorders or thrombotic conditions. It is important to consider that these ranges may vary slightly depending on the laboratory and its specific methodologies. For accurate diagnoses and assessments, these values must be interpreted by healthcare professionals within the context of individual patient health status and history.