RPFT Pulmonary Function Practice Test

The RPFT Pulmonary Function Practice Test is a free intermediate-level, 20-minute skill test from Science of Apps. Exam-style practice for the Registered Pulmonary Function Technologist (RPFT) credential. Covers spirometry and lung volumes (FEV1, FVC and the flow-volume loop), diffusion and other tests (DLCO, bronchodilator and challenge tests), equipment, quality control and calibration, and interpretation and patient care (obstructive versus restrictive patterns, instruction and safety). Written to NBRC and ATS/ERS standards for 2026. Educational practice; not a substitute for clinical training or supervision. Score 70% or more on its 20 questions to earn a verifiable RPFT Exam Preparation certificate (SOA-RPFT). Every question is based on published standards and research — including ATS/ERS technical standards for pulmonary function testing (spirometry, DLCO, lung volumes) (American Thoracic Society / European Respiratory Society), NBRC Registered Pulmonary Function Technologist (RPFT) credential (National Board for Respiratory Care) — and each answer is explained with its source.

Yes. Science of Apps has a free RPFT Pulmonary Function Practice Test built on the current NBRC exam outline for 2026 and 2027. It covers spirometry and lung volumes, diffusion and other tests, equipment, QC and calibration and interpretation and patient care, scores you instantly and issues a verifiable certificate.

Read the four skill areas on this page, then take the 20-minute test online — no fee, course or sign-up. You see every answer explained when you finish. Score 70% or more and you get a RPFT Exam Preparation certificate straight away, on screen, as a PDF and by email, with a credential ID anyone can verify.

Yes. The questions are original scenarios written by Science of Apps, and each one is based on a public source you can read: ATS/ERS technical standards for pulmonary function testing (spirometry, DLCO, lung volumes) (American Thoracic Society / European Respiratory Society); NBRC Registered Pulmonary Function Technologist (RPFT) credential (National Board for Respiratory Care). The source is shown under each question and linked in the answer review. Science of Apps doesn't copy questions from other tests.

Four skill areas with five questions each, drawn from a bank of 10 per area so a retake brings new questions: Spirometry and Lung Volumes (Spirometry, FEV1 and Volumes); Diffusion and Other Tests (DLCO, Bronchodilator and Challenge); Equipment, QC and Calibration (Calibration, QC and Infection); Interpretation and Patient Care (Patterns, Instruction and Safety). Every question is an original scenario written to the 2026–2027 standard, with the published source named under it.

Pulmonary function technologist, Respiratory therapist pursuing RPFT, PFT lab technician, Clinical pulmonary staff and Respiratory care student. It suits anyone who wants a quick, verifiable way to show RPFT Pulmonary Function knowledge in 2026 and 2027, from students and career switchers to experienced professionals.

The Registered Pulmonary Function Technologist (RPFT) is an advanced NBRC credential for pulmonary function testing. It covers performing and quality-assuring tests such as spirometry, lung volumes and diffusing capacity, calibrating equipment, instructing patients, and helping interpret results to ATS/ERS standards.

The FEV1/FVC ratio (forced expiratory volume in one second divided by forced vital capacity) helps distinguish obstructive from restrictive patterns. A reduced ratio suggests airflow obstruction (as in COPD or asthma), while a preserved or increased ratio with reduced volumes suggests restriction.

No. It is an independent practice test written to the publicly available RPFT Pulmonary Function content outline for 2026 and 2027, for checking your readiness before you book the real exam. Passing earns a Science of Apps certificate rather than the official credential.

Yes. The test is online, in English and free everywhere — people take it from India, the US, the UK, Europe, Africa, Latin America and Asia-Pacific. Your certificate is dated with your own local date and can be verified from anywhere at scienceofapps.com/certification/verify/.

20 questions — 5 from each of 4 skill areas — with a 20-minute limit. You need 70% (14 of 20) to pass and 90% for distinction.

We rate it Intermediate: assumes hands-on experience in the role. It has 20 scenario questions — 5 from each of 4 skill areas — and a 20-minute limit. You need 70% (14 of 20) to pass and 90% for distinction.

Nothing. There is no fee to take a test, to receive the certificate, to have it emailed or to verify it, and no sign-up.

On our server, not in your browser. The answers never reach the page until you submit, so a certificate can only be earned by passing. Each certificate gets a unique credential ID stored by Science of Apps.

You see your score for each area and every question with the correct answer and why, with the published source behind it. You can retake after 30 minutes, and the retake draws questions you haven't seen yet.

No. Every certificate is dated, so it always shows when you passed. Retake a test any time for a newer date or a higher score.

Yes. After you pass, Add to LinkedIn opens the Licenses & certifications form with the certificate name, Science of Apps as the issuer, the issue date, your credential ID and the verification link filled in. You can also download it as a PDF or PNG, and it's emailed to you as a PDF.

Every certificate has a credential ID and a QR code. Scanning it, or entering the ID at scienceofapps.com/certification/verify/, shows the holder's name, the certification, the score and the issue date from our records.

No. They are Science of Apps' own assessments of applied skill. They aren't issued by a university or standards body, and they work best alongside a portfolio that shows the skills in real work.