Home Compare RDN vs NPTE-PTA

Exam Comparison

RDN vs NPTE-PTA

Comparing the CDR Registered Dietitian Nutritionist Exam (RDN) and the NPTE — Physical Therapist Assistant. Both fall under Allied Health & Medicine. Both are covered by the Allied Health Exam Prep app.

RDN Overview → NPTE-PTA Overview →

RDN vs NPTE-PTA: At a Glance

Detail RDN NPTE-PTA
Full Name CDR Registered Dietitian Nutritionist Exam (RDN) NPTE — Physical Therapist Assistant
Governing Body CDR FSBPT
Number of Questions
Time Limit
Passing Score
Exam Fee
Category Allied Health & Medicine Allied Health & Medicine
C3RT App Allied Health Exam Prep Soon Allied Health Exam Prep Soon

Content Areas Compared

RDN Domains

  • Principles of Dietetics(12%)
  • Nutrition Care for Individuals and Groups(50%)
  • Management of Food and Nutrition Programs and Services(21%)
  • Support of Research(17%)

NPTE-PTA Domains

  • Musculoskeletal System(24%)
  • Neuromuscular and Nervous System(20%)
  • Cardiopulmonary System(14%)
  • Integumentary System(6%)
  • Other Systems(10%)
  • Equipment, Devices and Assistive Technology(8%)
  • Therapeutic Modalities(7%)
  • Safety and Protection(6%)
  • Professional Responsibilities(5%)

Frequently Asked Questions

What is the difference between RDN and NPTE-PTA?

The RDN (CDR Registered Dietitian Nutritionist Exam (RDN)) is administered by CDR. The NPTE-PTA (NPTE — Physical Therapist Assistant) is administered by FSBPT. Both are Allied Health & Medicine credentials.

Can I take both the RDN and the NPTE-PTA?

Yes, the RDN and NPTE-PTA are separate credentials with separate eligibility requirements. Each is awarded by a different governing body (CDR and FSBPT respectively). Check the official requirements for each before registering.

Which should I take first, RDN or NPTE-PTA?

The right sequence depends on your career goals and current credentials. The RDN is offered by CDR, while the NPTE-PTA is offered by FSBPT. Review the eligibility requirements for each with the respective governing bodies before deciding.

Does C3RT cover both the RDN and the NPTE-PTA?

C3RT is building apps for both the RDN and the NPTE-PTA. Both will be available on iOS and Mac.

The CDR Registered Dietitian Nutritionist Exam (RDN) (RDN) is administered by CDR. The NPTE — Physical Therapist Assistant (NPTE-PTA) is administered by FSBPT. C3RT is not affiliated with either organisation. Certification names and trademarks are the property of their respective owners.