Which of the following is an important marker for assessing thrombotic risk?

The importance of platelet count as a marker for assessing thrombotic risk stems from the role platelets play in hemostasis and thrombosis. A higher platelet count can indicate an increased tendency to form clots, which can lead to thrombotic events such as deep vein thrombosis or pulmonary embolism. Conversely, a very low platelet count can also contribute to bleeding risks but is not directly associated with thrombotic risk.

While hemoglobin levels, white blood cell count, and electrolyte levels provide valuable information regarding various health conditions, they do not specifically indicate a direct relationship with thrombotic risk. Hemoglobin levels primarily reflect oxygen-carrying capacity and anemia, whereas white blood cell counts are more relevant in assessing immune responses and infections. Electrolyte levels are crucial for many physiological functions but are not directly linked to coagulation status or thrombotic risk. Therefore, platelet count serves as a critical marker in evaluating an individual's risk for thrombotic events.