What spirometry results do underwriters consider?

Written by Hannah McCullough Insurance Researcher & Writer

A spirometry report can help a life insurer understand a respiratory condition, but it is not a pass-or-fail calculator. If you want to see your estimated rate in minutes, the most useful starting information is the complete report, including the testing date, reference values, bronchodilator status, and the clinician’s interpretation.

Which spirometry measurements appear on an underwriting file?

Underwriters usually start with FEV1, FVC, and the FEV1/FVC ratio. FEV1 is the volume exhaled during the first second of a forced breath. FVC is the total forced exhaled volume. The ratio compares the two and helps describe an obstructive pattern.

The report should also show the measured value, the predicted value, and the reference range or lower limit of normal. Those details matter because a raw number means little without the person’s age, height, sex, testing method, and reference equation. The GOLD spirometry guide specifically calls for recording relevant patient details and the time of the last bronchodilator use.

FEV1 is useful for describing the degree of airflow limitation after obstruction has been identified. GOLD’s clinical grading uses post-bronchodilator FEV1 as a percentage of reference, but those clinical grades describe airflow limitation, not a life-insurance offer. An insurer may read the same report alongside information that medical guidelines do not address, such as the application, records, and overall risk.

Does a low FEV1 automatically mean a higher life-insurance rate?

No. A low FEV1 can be an important finding, but it does not automatically produce a particular premium, rating, or decision. The NAIC describes life underwriting as a review of the information gathered for an application, and insurers’ processes and products differ. Any chart that maps 80%, 60%, or 40% directly to preferred, standard, or decline is presenting an insurer-specific rule as if it were universal.

That distinction protects you from overreading a medical severity scale. For example, GOLD uses FEV1 percentage to grade airflow limitation in people who meet its COPD obstruction criterion. A life insurer may consider that information, then ask about symptoms, treatment, exacerbations, oxygen use, smoking, work, and other conditions. The insurer’s own filed guidelines and the complete application control the outcome.

Why do FVC and the FEV1/FVC ratio matter?

FVC and the ratio provide context that FEV1 alone cannot. A low ratio can support an obstructive pattern, while a low FVC with a preserved ratio can suggest a low-volume or restrictive pattern that needs clinical follow-up. Spirometry can suggest a pattern, but it does not by itself identify every cause.

GOLD uses a post-bronchodilator FEV1/FVC ratio below 0.70 as its COPD criterion. The CDC discussion of spirometry interpretation also explains why a fixed 0.70 cutoff and a lower-limit-of-normal approach can classify some older adults differently. That is why the reference range, age, and the clinician’s interpretation belong with the result.

Bronchodilator information matters because the report may show whether the measurements were taken before or after medication. Underwriters may want to know what condition is being evaluated and how it is managed, but a spirometry result cannot diagnose a person or predict an insurance decision by itself.

How does test quality affect an underwriting review?

Test quality affects confidence in the numbers. The National Institute for Occupational Safety and Health says a valid test should include at least three acceptable maneuvers with repeatable FVC and FEV1 results. It also warns that technically poor curves can mislead the person interpreting them.

Look for the report’s quality comments, repeatability information, flow-volume curves, and any note about coughing, early termination, or inconsistent effort. If a result does not fit the clinical picture, a clinician may recommend repeat testing. That is a medical follow-up question, not a reason to change medication or delay care on your own.

The visual summarizes report-reading terms, not insurance cutoffs. The 0.70 value is a GOLD COPD criterion after bronchodilator. The three-effort and 150-milliliter repeatability guidance comes from NIOSH’s quality-assurance material. “LLN” means lower limit of normal, a reference concept that should be read with the report’s equation and clinician interpretation.

What else do underwriters review with spirometry?

Underwriters review the condition behind the test and its course over time. Relevant context can include the diagnosis, symptoms, medications, smoking or nicotine history, oxygen use, emergency visits, hospitalizations, pulmonary-function trends, imaging, and notes from the treating clinician. The exact questions depend on the application and the insurer.

Current and prior tests can be compared, but a change is meaningful only when testing quality and technique are comparable. The American Thoracic Society technical material hosted by CDC recommends comparing current spirometry with previous tests and considering testing variability and other clinical information.

Life-insurance underwriting also gathers broader application data. The National Association of Insurance Commissioners’ guidance describes traditional inputs such as application answers, medical records, prescription history, paramedical exams, and fluids. That helps explain why a spirometry report is one piece of an underwriting file rather than a standalone score.

Can you get life insurance with an abnormal spirometry result?

An abnormal result does not by itself answer that question. The insurer may need the underlying diagnosis, current treatment, recent symptoms, and supporting records before it can make a decision. Possible outcomes depend on the full risk profile and the product being considered. No one can promise approval, a rate class, or a specific premium from a spirometry percentage.

Prepare the complete report instead of sending only a summary number. Include the date, pre- and post-bronchodilator values if present, predicted and reference values, quality notes, and the clinician’s impression. Be accurate about smoking, medications, oxygen, flare-ups, and hospital care. Omitting material health information can create problems during underwriting and later claim review.

What should you prepare before applying?

Start with a short record packet: the latest spirometry report, any earlier test used for comparison, pulmonary or primary-care notes, medication names and doses, and a timeline of urgent visits or hospitalizations. Ask your clinician to explain unfamiliar terms. Do not change treatment to improve an insurance application.

Then ask a licensed life insurance agent what information an insurer will need and whether an informal pre-application review is available. A licensed professional can explain the application path, but only the insurer can evaluate the file. The NAIC consumer guidance recommends checking that an agent and company are licensed in your state.

What is the next step after reviewing the report?

The next step is to identify what the report actually shows and what remains unclear. If the result is old, incomplete, or technically limited, ask your treating clinician whether it needs medical follow-up. If you are ready to explore coverage, share the full record with a licensed life insurance agent and ask what documentation is needed before an application is submitted.

Readers who are still comparing application routes can review the easiest life insurance buying process guide before deciding whether to speak with an agent. The goal is to understand the information requested, not to guess an outcome from one test.

Once you know the diagnosis, recent history, and coverage amount you want, you can see your estimated rate in minutes. Treat that estimate as preliminary because the final offer depends on the completed application and underwriting review.