Question 1
Which chamber of the heart is associated with systemic arteries?
Correct Answer:
Left Ventricle
Explanation:
The left ventricle is directly responsible for pumping oxygenated blood into the systemic circulation, which supplies the entire body with the oxygen and nutrients it needs. After receiving oxygen-rich blood from the lungs via the left atrium, the left ventricle contracts and pushes this blood through the aorta, the body's main artery. This process is crucial for delivering oxygen and other essential substances to tissues, which is why the left ventricle is associated with systemic arteries. The other chambers of the heart have different roles: the right atrium receives deoxygenated blood from the body, the right ventricle pumps blood to the lungs for oxygenation, and the left atrium receives oxygenated blood from the lungs. Therefore, each chamber has a specific function, with the left ventricle being central to the systemic flow of blood throughout the body.
Question 2
What could cause a persistent high pressure alarm in a patient receiving mechanical ventilation?
Correct Answer:
Excessive secretions
Explanation:
A persistent high pressure alarm during mechanical ventilation typically indicates an increase in resistance within the ventilatory circuit or to airflow into the lungs. Excessive secretions can significantly contribute to this alarm as they may obstruct airways, leading to increased work during inspiration. The ventilator's pressure limit might be exceeded due to the additional pressure required to overcome the resistance from these secretions. In a clinical setting, thick or copious secretions can accumulate in the airways, resulting in limited airflow and making it difficult for the ventilator to deliver breaths effectively. This situation necessitates the recruitment of higher pressures, triggering the alarm as the preset thresholds are exceeded. While other factors such as a collapsed lung, an underinflated cuff, or improper ventilator settings can also lead to high pressure alarms, excessive secretions are directly associated with airway obstruction, making them a primary cause of this alarm in the context of respiratory care.
Question 3
What is the purpose of a computed tomography (CT) scan in pulmonary assessment?
Correct Answer:
Visualize mediastinal, pleural, and parenchymal masses
Explanation:
A computed tomography (CT) scan in pulmonary assessment primarily serves to visualize mediastinal, pleural, and parenchymal masses. This imaging modality provides high-resolution cross-sectional images of the chest, allowing clinicians to evaluate the structure of the lungs and surrounding tissues in great detail. It helps identify and characterize masses, nodules, or other abnormalities in the thoracic cavity, aiding in the diagnosis of conditions such as tumors, infections, or inflammatory diseases. The ability to view these structures in three dimensions is crucial for planning further management, including potential interventions or surgical evaluations. While CT scans can assist in other areas, such as assessing fluid levels, monitoring treatment responses, and guiding biopsy procedures, the primary strength of a CT scan lies in its detailed visualization capabilities, making it invaluable for characterizing masses within the thoracic structures. This specific focus on visualization aligns with the needs of clinical assessments in pulmonology, further validating why this option is the most appropriate in the context of the question.
Question 4
In which condition would a decrease in Cardiac Index be concerning?
Correct Answer:
Heart Failure
Explanation:
A decrease in Cardiac Index is particularly concerning in the context of Heart Failure because this condition is characterized by the heart's inability to pump sufficient blood to meet the body's needs. The Cardiac Index is a measure of the cardiac output (the volume of blood the heart pumps per minute) adjusted for body surface area, providing a perspective on how well the heart is functioning in relation to the individual's size. In Heart Failure, the heart's clinical status can rapidly change, and a decrease in Cardiac Index indicates that the heart is even less effective at perfusing organs and tissues. This can lead to a multitude of complications, including worsening symptoms, excessive fatigue, and even organ dysfunction due to inadequate blood flow. In conditions like Hypertension, Anemia, or Hyperlipidemia, while they can pose risks and impact overall health, they do not directly correlate with a significant decrease in Cardiac Index in the same critical manner that Heart Failure does. Managing Heart Failure requires vigilant monitoring of the Cardiac Index to guide treatment decisions and interventions, making it a key focus in this scenario.
Question 5
Which side effects are associated with inhaled nitric oxide?
Correct Answer:
Methemoglobinemia
Explanation:
Inhaled nitric oxide (iNO) is a selective pulmonary vasodilator primarily used in the treatment of respiratory failure and pulmonary hypertension. One of its known side effects is methemoglobinemia, which occurs when the iron in hemoglobin is oxidized to a ferric state, making it unable to bind oxygen effectively. As a result, this can lead to reduced oxygen delivery to tissues, potentially causing cyanosis and decreased oxygen saturation levels. Methemoglobinemia is a concern with inhaled nitric oxide due to the formation of small amounts of nitric oxide-related compounds that can promote the oxidation of hemoglobin. Monitoring for this condition is essential when iNO is administered, especially at higher doses or with prolonged use. While electrolyte imbalance, respiratory alkalosis, and hypertension are important considerations in various therapeutic contexts, they are not directly linked as common side effects of inhaled nitric oxide administration. Understanding methemoglobinemia helps clinicians recognize the risks involved with iNO and implement appropriate monitoring strategies to ensure patient safety.
Question 1
Exam overview

About this Exam

The Kettering Therapist Multiple-Choice (TMC) Practice Exam is a premium preparatory resource created by Kettering National Seminars. It is specifically designed to help respiratory therapy students and graduates prepare for the high-stakes, official NBRC Therapist Multiple-Choice Examination. This practice exam is not the official certification itself, but a powerful simulation tool. It is intended for individuals who have completed an accredited respiratory therapy program and are aiming to become a Certified Respiratory Therapist (CRT) or to meet the eligibility requirements for the Registered Respiratory Therapist (RRT) credentialing process. The Kettering practice exam builds confidence and identifies critical knowledge gaps.

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What the Course Entails and Exam Details

The Kettering TMC preparatory material and its accompanying practice exams offer a comprehensive review of the core content domains required for the actual NBRC TMC. While the practice exam is a standalone assessment, it is often paired with Kettering’s broader review seminars and study guides. The content is meticulously aligned with the NBRC content outline, ensuring you are testing yourself on the most relevant material.

Key areas covered in the Kettering practice exam include detailed simulations of patient data assessment, where you will evaluate vital signs, breath sounds, and lab values. You will encounter numerous questions on the selection, setup, and troubleshooting of various equipment, from oxygen delivery systems to complex mechanical ventilators. Furthermore, the exam heavily tests your ability to make sound clinical decisions regarding therapeutic interventions, such as medication administration, bronchial hygiene, and airway management. Kettering provides detailed rationales for every single answer, allowing you to understand not just what the correct answer is, but why it is the best choice in a clinical context.


What to Expect in the Final Exam

It is critical to distinguish between the Kettering preparation tool and the actual final exam. Your ultimate goal is to pass the National Board for Respiratory Care (NBRC) Therapist Multiple-Choice (TMC) Examination.

The actual NBRC TMC consists of 160 multiple-choice questions, which includes 140 scored questions and 20 unscored "pretest" questions. You will have a total of 3 hours to complete the entire examination. This is a computer-based, standardized test.

The scoring of the NBRC TMC is unique and highly significant. There are two cut scores. Achieving the "low cut score" will earn you the Certified Respiratory Therapist (CRT) credential. However, if you achieve the "high cut score," you not only earn your CRT, but you also become eligible to take the Clinical Simulation Examination (CSE), which is the next step to earning the prestigious Registered Respiratory Therapist (RRT) credential. The examination is rigorous, testing your ability to recall, apply, and analyze complex clinical information.


How to Study and Exam Centers

How you approach your study with the Kettering practice exam will make a profound difference in your official result. Do not simply take the test to see your score. Treat every practice session as a learning opportunity.

The single most effective strategy is to meticulously review the detailed rationales provided by Kettering for every single question you answer, especially the ones you got wrong. This will help you identify weak points and correct misunderstandings. Use this data to create a focused study plan. Instead of broad review, target the specific content areas where you struggle. Take multiple practice exams over a period of weeks to build your mental stamina, improve your pacing, and become comfortable with the format of complex clinical scenarios. Many successful candidates recommend using the Kettering product in combination with official NBRC self-assessment examinations to get a well-rounded perspective of your readiness.

For the actual NBRC TMC final exam, you will not take it at a Kettering seminar. You must register directly with the NBRC and schedule an appointment at an authorized testing center. The NBRC contracts with Applied Measurement Professionals, Inc. (AMP), a PSI company, to administer the exam. Tests are offered on a daily basis at over 190 Assessment Centers nationwide, which are frequently located at Pearson VUE testing centers. You can find the list of specific testing locations and register for your test date on the official NBRC website.


Job Opportunities from the Course

Passing the NBRC TMC, which the Kettering practice exam is designed to help you do, is the foundational requirement for entering the respiratory care profession. The job opportunities it unlocks are diverse and highly rewarding.

  • Certified Respiratory Therapist (CRT)

  • Registered Respiratory Therapist (RRT) (upon completion of the Clinical Simulation Exam)

  • Pulmonary Function Technologist (CPFT/RPFT)

  • Sleep Disorder Specialist (SDS)

  • Asthma Educator (AE-C)

  • Neonatal/Pediatric Specialist (NPS)

  • Adult Critical Care Specialist (ACCS)

  • Home Care Respiratory Therapist

  • Respiratory Care Manager or Director

  • Clinical Educator in a university or hospital setting

  • Medical Sales or Product Specialist for respiratory equipment

This comprehensive study guide is your first step toward success. By understanding the exam, using the Kettering tool strategically, and focusing on the actual NBRC requirements, you are well on your way to a fulfilling career as a respiratory therapist. We wish you the very best in your preparation.


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