Catalase activity — lab reference
In the reference guideThe method can change the result; ask what clinical question the test is meant to answer and whether a repeat would help.
THE PURSER WELLNESS ENCYCLOPEDIA
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What’s searchable?The method can change the result; ask what clinical question the test is meant to answer and whether a repeat would help.
Direct renin and plasma renin activity are not interchangeable.
RBC, plasma, and cellular assays are not interchangeable.
Ask your clinician to use performing-lab range and trend with C4/CH50 and disease activity.
Your lab may use its own range. Symptoms, medicines, and the types of white blood cells also matter.
Altitude, smoking, hydration, androgen therapy, and pregnancy may shift values.
Ask your clinician to consider altitude and iron/B12/folate status. Pregnancy requires trimester-specific ranges.
Hydration and altitude are major modifiers. Ask your clinician to review alongside hemoglobin and RBC indices.
Macrocytosis and microcytosis require cause-specific interpretation.
The test method matters. Ask your clinician to review with MCV and MCHC.
Analyzer-specific; hemolysis and cold agglutinins may interfere.
Useful with MCV for mixed nutrient deficiencies and evolving anemia.
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