Why do I need a hematocrit test?Your health care provider may have ordered a hematocrit test as part of your regular checkup or if you have symptoms of a red blood cell disorder, such as anemia or polycythemia vera. These include:Symptoms of anemia:Shortness of breathWeakness or fatigueHeadacheDizzinessCold hands and feetPale skinChest painSymptoms of polycythemia vera:Blurred or double visionShortness of breathHeadacheItchingFlushed skinTirednessExcessive sweating
