NBRC EXIT EXAMS 2024-2025 2 VERSIONS

NBRC EXIT EXAMS 2024-2025 (2 VERSIONS)

NBRC TMC/CRT/RRT EXAM 1 &2 ALL 300

QUESTIONS AND CORRECT VERIFIED

ANSWERS (GUARANTEED PASS)

Following surgery to correct an abdominal aortic aneurysm, a 54-year-old female patient suddenly develops intense substernal chest pain with severe dyspnea. The pain does not appear to be aggravated by her respirations. Auscultation reveals bilateral, basilar, moist, crepitant rales. The patient appears pale, cold and clammy.Which of the following should the respiratory therapist recommend for initial assessment of this patient?

• Serum electrolytes
• Chest x-ray
• Complete blood cell count
• Electrocardiograph - ANSWER-D. Electrocardiograph

An adult patient is intubated with a 7.0 mm ID endotracheal tube. What size suction catheter should be used to suction this patient?

• 8 French
• 10 French
• 12 French
• 14 French - ANSWER-B. 10 French

The following blood gas levels have been obtained from a patient using a 60% aerosol mask.

pH: 7.47

PaCO2: 31 mmHg

PaO2: 58 mmHg

What should the RT recommend at this time?

• Place the patient on CPAP
• Increase the O2 to 70%
• Intubate and place the patient on mechanical ventilation 1 / 4

• Change to a nonrebreathing mask - ANSWER-A. Place the patient on CPAP

A 43-year-old female patient has just undergone a total abdominal hysterectomy.The patient arrives in the post anesthesia care unit obtunded with minimal response to painful stimulus. What treatment should the respiratory therapist recommend for this patient?

• Initiate assisted ventilation
• Insert oropharyngeal airway
• Obtain positron emission tomography
• Initiate noninvasive capnography - ANSWER-B. Insert oropharyngeal airway

A 44 week gestational age infant has just been delivered via C-section and is gasping, grunting, and has tachycardia and tachypnea. At one minute his Apgar score is 4 and at 5 minutes the score is 5. The infant is most likely suffering from

• transient tachypnea of the newborn.
• meconium aspiration.
• bronchopulmonary dysplasia.
• apnea of prematurity. - ANSWER-B. meconium aspiration.

Given the following data, what is the patient's total arterial O2 content?

pH: 7.41

PaCO2: 37 mmHg

PaO2: 88 mmHg

HCO3: 26 mEq/L

SaO2: 95%

Hb: 14 g/dL

• 12 mL/dL
• 14 mL/dL
• 16 mL/dL
• 18 mL/dL - ANSWER-(Hb x 1.36 x SaO2) + (0.003 x PaO2)

(14 x 1.36 x 0.95) + (0.003 x 88)

18.088 + 0.264

= 18.352

Answer: D. 18 mL/dL

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You want to pass a suction catheter into the patient's left lung to obtain a sputum specimen. What is the most appropriate method of accomplishing this?

• Have the patient turn his or her head to the left
• Have the patient turn his or her head to the right
• Use a coude suction catheter
• Use a catheter that is one half the internal diameter of the patient's airway -

ANSWER-C. Use a coude suction catheter

A patient is receiving O2 from an E cylinder at 4 L/min through a nasal cannula.The cylinder pressure is 1900 psig. How long will the cylinder run until it is empty?

• 47 min
• 1.7 h
• 2.2 h
• 3.6 h - ANSWER-E cylinder = 0.28

1900x0.28/4 = 133/60 = 2.21

Answer: C. 2 hours, 21 minutes

The respiratory therapist receives an order to set up a moderate level of O2 on a patient who arrives in the ED breathing at a rate of 35 breaths/min. Which of the following O2 delivery devices is most appropriate to use in this situation?

• Simple O2 mask at 10 L/min
• Nasal cannula at 4 L/min
• NRB Mask at 15 L/min
• Air-entrainment mask at 40% O2 - ANSWER-D. Air-entrainment mask at 40%

O2

A patient breathing 50% oxygen has a PaO2 of 248 torr. Which of the following should the RT recommend?

• Discontinue O2 therapy
• Decrease the oxygen to 30%
• Titrate oxygen to maintain an SpO2 > 93%
• Repeat the blood gases because the PaO2 is not possible on this FiO2. -

ANSWER-C. Titrate oxygen to maintain an SpO2 > 93%

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Explanation: A PaO2 of 250 torr is normal on 50% O2. Remember, to determine

the normal PaO2 on any given O2%, multiply the O2% by 5. This is an approximation. If titrate was not a choice, then you would discontinue the oxygen.

The RT is assessing a patient with severe emphysema and observes pedal edema and jugular venous distention. The therapist should note in the patient's chart that

these signs are most likely the result of:

• Systemic hypertension
• Hypercapnia
• Pulmonary infection
• Right ventricular hypertrophy - ANSWER-D. Right ventricular hypertrophy

A patient has just been intubated, and the CO2 detector placed on the proximal end of the ETT reads 1.5%. The RT should suspect which of the following?

• The tube is in the trachea
• The tube is in the right mainstem bronchus and should be withdrawn 4 cm
• The tube is in the esophagus
• The tube is at the level of the carina and should be withdrawn 2 cm -

ANSWER-C. The tube is in the esophagus

A severe COPD patient arrives in the emergency department on a 2 L/min nasal

cannula. Arterial blood gas results follow:

pH: 7.32

PaCO2: 67 mmHg

PaO2: 62 mmHg

HCO3: 38 mEq/L

Which of the following is the most appropriate recommendation?

• Increase the liter flow to 4 L/min
• Maintain the current O2 level
• Institute noninvasive positive pressure ventilation (NPPV)
• Place on a NRB mask at 12 L/min - ANSWER-B. Maintain the current O2 level

After the Respiratory Therapist sets up a nonrebreathing mask on a patient at a flow rate of 10 L/min, the reservoir bag collapses before the patient finishes inspiring. The RT should do which of the following?

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