Which of the following laboratory values indicate a potential risk of bleeding in a patient? A. Platelets count of 250000mm3 B . international normalized ratio of 1.2 C.hemoglobin level of 15gl/dl
This mathematics problem involves applying core mathematical principles and formulas. Below you will find a complete step-by-step solution with detailed explanations for each step, helping you understand not just the answer but the method behind it.
ScanSolve AI Answer
The correct answer is B.
B. international normalized ratio of 1.2
Here's why:
1. Platelets count of 250000mm³: A normal platelet count typically ranges from 150,000 to 450,000 per mm³. A count of 250,000 mm³ is within the normal range and does not indicate an increased risk of bleeding.
2. International Normalized Ratio (INR) of 1.2: The INR measures how long it takes for blood to clot. A normal INR for a healthy person not on anticoagulant medication is usually around 0.8 to 1.2. An INR of 1.2 is at the higher end of this normal range or slightly elevated, indicating a mild prolongation of clotting time. While not critically high, it suggests a potential increased risk of bleeding compared to an INR of 1.0, especially if the patient has other risk factors or is undergoing a procedure. Higher INR values (e.g., >3.0) are associated with a more significant bleeding risk.
3. Hemoglobin level of 15gl/dl: A normal hemoglobin level for adult males is typically 13.5-17.5 g/dL and for adult females is 12.0-15.5 g/dL. A level of 15 g/dL is within the normal range and does not indicate a risk of bleeding. (Note: "gl/dl" is likely a typo for "g/dL").
Therefore, an INR of 1.2 is the only value among the options that indicates a potential (even if mild) increased risk of bleeding.