Jim is a 45-year-old male being evaluated for a routine phys…
Jim is a 45-year-old male being evaluated for a routine physical. His past medical history includes 18 pack year history of tobacco use and hypertension. CBC results are as follows. What underlying blood disorder do you suspect? Result Reference Range WBC 9.4 k/mcL 4.0-10.0 k/mcL RBC 8.2 million cells/mcL 4.0-5.4 million/mcL (female) 4.5-6.1 million/mcL (male) Hemoglobin 23.6 g/dL 11.5-15.5 g/dL (female) 13-17 g/dL (male) Hematocrit 68.4% 36-48% (female) 40-55% (male) MCV 94 fL 80-100 fL MCH 28 pg 27-31 pg
Read DetailsAny reduction in oxygenation, such as lung disease, can caus…
Any reduction in oxygenation, such as lung disease, can cause secondary polycythemia. Blood donation does not precipitate this problem and impaired renal function typically causes anemia, not polycythemia. A history of venous thromboembolism is not a likely contributor.
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