Question 1

How many questions are on the NBRC TMC exam?

Accepted Answer

The TMC exam contains 160 questions: 140 scored questions and 20 unscored pretest questions. Candidates have 3 hours to complete the exam.

Question 2

What is the passing score for the TMC exam?

Accepted Answer

The NBRC sets two cut scores for the TMC. A Low Pass earns the CRT credential. A High Pass makes you eligible to sit for the CSE to earn the RRT credential.

Question 3

What topics are covered on the TMC exam?

Accepted Answer

The TMC covers three domains: Domain I (Patient Data Evaluation, 50 questions), Domain II (Troubleshooting, 20 questions), and Domain III (Initiation and Modification of Interventions, 70 questions). ABG interpretation, mechanical ventilation, and oxygen therapy are among the highest-yield topics.

Question 4

How long should I study for the TMC exam?

Accepted Answer

Most students benefit from 4–8 weeks of structured studying. A 30-day plan works well: week 1 for diagnostics and Domain I, week 2 for Domain III (ventilation and airway), week 3 for weak areas and a full exam, and week 4 for final review and exam simulation.

Question 5

What is the difference between CRT and RRT?

Accepted Answer

The CRT (Certified Respiratory Therapist) credential is earned by achieving a passing score on the TMC. The RRT (Registered Respiratory Therapist) requires a High Pass on the TMC plus passing the Clinical Simulation Exam (CSE).

TMC Exam Prep | NBRC Practice Questions