Alpha-1 Antitrypsin Deficiency Severity Composite

Composite severity assessment for alpha-1 antitrypsin deficiency using Pi typing, serum A1AT level, FEV1 percent predicted, DLCO, and liver fibrosis markers to guide augmentation therapy decisions.

Weight
Height
Clinical Guidance

BMI is a screening measure of body size, not a direct measure of body fat. The standard WHO categories are underweight (<18.5), normal (18.5–24.9), overweight (25–29.9), and obese (≥30).

BMI can overestimate body fat in athletes with high muscle mass and underestimate it in older adults with low muscle mass. Interpret it alongside waist circumference and clinical context rather than as a standalone diagnosis.

⚕ Clinical Disclaimer: These calculators are for educational and reference purposes only. Always verify results with qualified clinical judgment and current clinical guidelines. Do not use as a sole basis for medical decisions.
Advertisement

How It Works

Composite severity assessment for alpha-1 antitrypsin deficiency using Pi typing, serum A1AT level, FEV1 percent predicted, DLCO, and liver fibrosis markers to guide augmentation therapy decisions

Each component has a specific meaning:

  • Pi typing — The pi typing recorded for the scenario being assessed.
  • Serum A1AT level — The serum a1at level recorded for the scenario being assessed.
  • FEV1 percent predicted — The fev1 percent predicted recorded for the scenario being assessed.
  • DLCO — The dlco recorded for the scenario being assessed.
  • Liver fibrosis markers — The liver fibrosis markers recorded for the scenario being assessed.

Note: Interpret the a1at severity result against the thresholds and context described above.

How to Use

Enter the Pi typing, serum A1AT level, FEV1 percent predicted, DLCO, liver fibrosis markers for the scenario you are assessing. Composite severity assessment for alpha-1 antitrypsin deficiency using Pi typing, serum A1AT level, FEV1 percent predicted, DLCO, and liver fibrosis markers to guide augmentation therapy decisions. Use the a1at severity result to inform your calculation.

Related Calculators

CF Nutrition

Medical Calculators

Metabolic Syndrome Risk

Medical Calculators

HD Burden Score

Medical Calculators

Frequently Asked Questions