The process involves determining the percentage of polymorphonuclear leukocytes (PMNs) in a patient’s peripheral blood, specifically in relation to their systolic blood pressure (SBP). This calculation typically requires a complete blood count (CBC) with differential to ascertain the PMN count and a separate measurement of systolic blood pressure. The PMN count is then expressed as a percentage of the total white blood cell count. The result is then considered in the context of the corresponding SBP value.
Assessing the relationship between these two parameters can be clinically significant. Elevated PMN percentages, particularly when considered in conjunction with systolic blood pressure readings, may indicate inflammatory states, infection, or other physiological stresses. Historically, individual assessment of PMN and SBP has been a part of routine clinical evaluation. Understanding their interplay provides potentially more refined diagnostic or prognostic information.