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What is total protein?

Total Protein is a blood test that measures the combined levels of two key proteins in the blood: albumin and globulin. These proteins play vital roles in maintaining fluid balance, immune function, and transporting essential substances throughout the body. Measuring total protein provides valuable insight into overall health, particularly liver function, kidney function, and nutritional status.

Why is total protein important?

Protein levels in the blood can indicate various health conditions. Low total protein may suggest liver disease, kidney disease, or malnutrition, while high levels could be linked to chronic infections, inflammatory diseases, or certain cancers like multiple myeloma. Because proteins are essential for immune response, healing, and muscle maintenance, monitoring total protein helps identify underlying health concerns before symptoms appear.

How can I better understand my results?

To better interpret your results, refer to the following values:

Lab Range:

  • Out of range (low): <6.3 g/dL
  • In range: 6.3–8.2 g/dL
  • Out of range (high): >8.2 g/dL

SiPhox Ranges:

  • Optimal Range: 6.3–8.2 g/dL
  • Good Range: 6.0–6.3 g/dL and 8.2–8.5 g/dL
  • Fair Range: 5.5–6.0 g/dL and 8.5–9.0 g/dL
  • Pay Attention: <5.5 g/dL or >9.0 g/dL

Low total protein may be associated with liver disease, kidney disease, malnutrition, or malabsorption. High total protein may be associated with dehydration, chronic infection or inflammation, or certain blood disorders. Total protein should be interpreted alongside albumin, globulin, and other relevant biomarkers to better understand the underlying cause of an abnormal result.

SiPhox’s total protein ranges are supported by a historical cohort study of 2,235 general inpatients, which found total protein below 6.5–6.8 g/dL predicted significantly higher in-hospital mortality, reflecting malnutrition or inflammatory status. This is why SiPhox’s “optimal” range sits above this risk threshold, treating levels near 6.4–6.6 g/dL as only “fair” despite falling within most labs’ broader 6.0–8.3 g/dL normal range.

How can I maintain optimal total protein levels?

Maintaining balanced protein levels involves addressing any underlying health issues and ensuring proper nutrition.

For Low Total Protein:

  • Improve nutrition: Eat a protein-rich diet with lean meats, fish, dairy, legumes, and nuts.
  • Address liver or kidney disease: Follow your doctor’s guidance on managing these conditions.
  • Check for malabsorption issues: Conditions like celiac disease or inflammatory bowel disease may require specific dietary changes.

For High Total Protein:

  • Identify underlying infections or inflammation: Chronic conditions should be properly diagnosed and managed.
  • Monitor for blood disorders: Further testing may be needed if a blood-related condition is suspected.

Where Can I Learn More?

DISCLAIMER: IF YOU ARE CONCERNED ABOUT YOUR TOTAL PROTEIN LEVELS, PLEASE CONSULT YOUR PHYSICIAN.