Why do I need a ferritin blood test?You may need this test if you have symptoms of iron levels that are too low or too high.Symptoms of iron levels that are too low include:Pale skinFatigueWeaknessDizzinessShortness of breathRapid heart beatSymptoms of iron levels that are too high can vary and tend to get worse over time. Symptoms may include:Joint painAbdominal painLack of energyWeight lossYou may also need this test if you have restless legs syndrome, a condition that may be related to low iron levels.
