HCT 38 - 48 HIGH DIFFERENTIAL DIAGNOSIS

DIFFERENTIAL DIAGNOSIS FOR POLYCYTHEMIA

Relative

Dehydration

Gaisbocks Syndrome (Stress Polycythemia)

Absolute

     Primary

          Polycythemia Vera

     Secondary

          Hypoxia Dependant 

               High Altitude

               COPD

               Sleep Apnea 

               Cardiovascular Right-to-Left Shunting of Blood

               Carboxyhemoglobin

                    Smoker's Polycythemia

                    Chronic Carbon Monoxide Poisoning 

               Methemoglobin

     Hypoxia Independant 

          Tumors

               Renal Cell Carcinoma

               Hepatocellular Carcinoma

               Cerebellar Hemangioblastoma

               Uterine Leiomyoma

               Adrenal Cortical Adenoma or Hyperplasia

               Ovarian Carcinoma

               Pheochromocytoma 

          Renal Disease

               Renal Artery Stenosis

               Cysts

               Hydronephrosis

               Bartters Syndrome

               Transplantation

               Idiopathic Familial Polycythemia 

               Cobalt

               Epogen/Darbopoetin

                    Abuse

                    Iatrogenic

     Familial Autosomal Recessive Polycythemia (Chuvash Polycythemia)

     Idiopathic Familial  Erythrocytosis