NBRC TMC Mock Exam Review questions 2024 with correct answers, Exams of Nursing

Download NBRC TMC Mock Exam Review questions 2024 with correct answers and more Exams Nursing in PDF only on Docsity! NBRC TMC Mock Exam Review questions 2024 with correct answers 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? A. 47 min B. 1.7 h C. 2.2 h D. 3.6 h - ANSWER: E cylinder = 0.28 1900x0.28/4 = 133/60 = 2.21 Answer: C. 2 hours, 21 minutes 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? A. Change to a simple mask at a flow rate of 10 L/min B. Remove the one-way valve from the exhalation port. C. Place the patient on continuous positive airway pressure (CPAP) D. Increase the flow rate to 15 L/min - ANSWER: D. Increase the flow rate to 15 L/min A patient with carbon monoxide (CO) poisoning can best be treated with which of the following therapies? A. Nasal Cannula at 6 L/min B. Simple O2 mask at 10 L/min C. CPAP and 60% O2 D. Nonrebreathing mask - ANSWER: D. Nonrebreathing mask 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? A. Place the patient on CPAP B. Increase the O2 to 70% C. Intubate and place the patient on mechanical ventilation D. Change to a nonrebreathing mask - ANSWER: A. Place the patient on CPAP 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 A. 12 mL/dL B. 14 mL/dL C. 16 mL/dL D. 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) B. 45 L/min C. 54 L/min D. 60 L/min - ANSWER: (*Use 21 with O2 % less than 40%) (100- 30%)/ (30%-*21) = 70/9 = 8/1 or 8:1 ratio 8+1= 9 9x5 = 45 L/min B. 45 L/min Secretions tend to become thicker if the inspired air has which of the following characteristics? A. A relative humidity of 100% at body temperature B. 32 mg H2O per liter of gas C. A water vapor pressure of 47 mmHg D. 48 mg H2O per liter of gas - ANSWER: B. 32 mg H2O per liter of gas A patient receiving 38 mg H2O per liter of gas from a nebulizer has a humidity deficit of which of the following? A. 6 mg/L B. 9 mg/L C. 12 mg/L D. 18 mg/L - ANSWER: 44-38= 6 A. 6 mg/L After connecting a nasal cannula to the humidifier outlet, you kink the tubing and hear a whistling noise coming from the humidifier. Which of the following most likely has caused this? A. The humidifier jar is cracked B. The capillary tube in the humidifier is disconnected C. The humidifier has no leaks D. The top of the humidifier is not screwed on tightly - ANSWER: C. The humidifier has no leaks You notice that the patient's secretions have become thicker and more difficult to suction since the ventilator humidifier was replaced with an HME. The RT should recommend which of the following? A. Increase inspiratory flow B. Decrease the temperature to the HME C. Replace with a new HME D. Replace the HME with a conventional heated humidifier - ANSWER: D. Replace the HME with a conventional heated humidifier Which of the following are indications for cool, bland aerosol therapy? 1. A cough must be induced for sputum collection 2. Mobilization of secretions must be improved 3. Postextubation inflammation of the upper airway must be treated A. 1 only B. 1 and 3 only C. 2 and 3 only D. 1, 2, and 3 - ANSWER: D. 1, 2, and 3 You notice that very little mist is being produced by a nebulizer attached to an aerosol mask. Which of the following could be responsible for this? 1. The liter flow is too high 2. The nebulizer jet is clogged with lint 3. The filter on the capillary tube is obstructed A. 1 only B. 2 only C. 1 and 3 only D. 2 and 3 only - ANSWER: D. 2 and 3 only An autoimmune compromised patient is to be placed on oxygen with a humidity/aerosol device. Which of the following devices is most likely to deliver contaminated water to the patient? A. Heated cascade humidifier B. Bubble humidifier C. Heated wick humidifier D. Heated jet nebulizer - ANSWER: D. Heated jet nebulizer To minimize an increased airway resistance produced by high-density aerosol inhalation, the RT should recommend which of the following? A. Administer a bronchodilator along with the aerosol B. Instruct the patient to breathe through the nose C. Use a heated nebulizer to deliver the aerosol D. Perform chest physiotherapy after the aerosol treatment - ANSWER: A. Administer a bronchodilator along with the aerosol The RT is asked to recommend a humidifier that will be able to provide the highest water vapor content to the patient's airway. Which of the following humidifiers should the therapist select? A. Pass-over B. HME B. The tube should be advanced until equal breath sounds are heard C. The tube should remain at this level D. The tube should be withdrawn 3 cm - ANSWER: D. The tube should be withdrawn 3 cm The RT is reviewing the chart of a patient suspected of having congestive heart failure. This condition would best be indicated with an elevation in which of the following cardiac biomarkers? A. Troponin B. Myoglobin C. Creatine kinase (CK) D. B-type natriuretic peptide (BNP) - ANSWER: BNP > 500 = CHF D. B-type natriuretic peptide (BNP) A patient is suspected of suffering acute myocardial infarction. Which of the following lab values would be increased in the patient's blood? A. Hematocrit B. CK-MB C. BNP D. Albumin - ANSWER: B. CK-MB The RT notes a respiratory rate of 36 breaths/min in an adult patient's chart. The patient's breathing pattern is best described by which of the following? A. Hyperventilation B. Dyspnea C. Hypoventilation D. Tachypnea - ANSWER: D. Tachypnea 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: A. Systemic hypertension B. Hypercapnia C. Pulmonary infection D. 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? A. The tube is in the trachea B. The tube is in the right mainstem bronchus and should be withdrawn 4 cm C. The tube is in the esophagus D. The tube is at the level of the carina and should be withdrawn 2 cm - ANSWER: C. The tube is in the esophagus Which of the following statements is true regarding the King Airway? A. It is double-lumen tube placed in the esophagus to ventilate difficult-to-intubate patients. B. The airway can be used only on patients at least 5 feet tall C. The airway utilizes one cuff, which is inflated with 45-90 mL of air to block off the oropharynx D. Because of the length of the airway, it is unlikely that the trachea can be intubated inadvertently - ANSWER: D. Because of the length of the airway, it is unlikely that the trachea can be intubated inadvertently Magill forceps are used during which of the following procedures? A. Nasotracheal intubation B. Oral intubation C. Tracheotomy D. Insertion of an esophageal tracheal Combitube (ETC) - ANSWER: A. Nasotracheal intubation The physician wants to begin weaning a patient from a tracheostomy tube. How can this best be accomplished? A. Deflate the cuff every 2 hours B. Change to a fenstrated trach tube C. Keep the cuff inflated and remove the inner cannula D. Change to a trach tube with a foam cuff - ANSWER: B. Change to a fenstrated trach tube You are called to a patient's room because a ventilator alarm is sounding. You hear an audible leak around the patient's ET tube during a ventilator breath and notice the exhaled volume reading is 150 mL less than the set Vt. You check the cuff pressure and find that it is 12cm H2O. Which of the following is the appropriate action to take? A. Maintain the current cuff pressure and increase the patient's Vt to compensate for the leak. B. Instill enough air to maintain a cuff pressure of 30 mm Hg. C. Instill air into the cuff to a pressure of 20-30 cm H2O. D. Instill enough air until only a slight audible leak is heard. - ANSWER: C. Instill air into the cuff to a pressure of 20-30 cm H2O. 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? A. Have the patient turn his or her head to the left B. Have the patient turn his or her head to the right C. Use a coude suction catheter D. Use a catheter that is one half the internal diameter of the patient's airway - ANSWER: C. Use a coude suction catheter After a bronchoscopy, the RT notes that it is taking more ventilator pressure to ventilate the patient's lungs than before the procedure. This could be caused by which of the following? 1. Bronchospasm 2. Pneumothorax 3. Hypoxemia 4. Pulmonary hemorrhage A. 1 and 2 only B. 2 and 3 only C. 1, 2, and 4 only D. 2, 3, and 4 only - ANSWER: C. 1, 2, and 4 only To aid in the evacuation of air from the pleural space, a chest tube should be inserted at what level? A. Supraclavicular space B. Second intercostal space anteriorly at the midclavicular level C. Sixth intercostal space anteriorly D. Eighth intercostal space anteriorly - ANSWER: B. Second intercostal space anteriorly at the midclavicular level The RT notices on a patient's chest tube drainage system that there is fluctuation of the water level in the water-seal chamber with each patient breath, and that air bubbles are seen only in the suction control chamber, which has a suction pressure of -20 cm H2O. The most appropriate action is which of the following? A. Clamp the chest tube and check for leaks B. Insert - ANSWER: Which of the following ventilator waveforms best enables a RT to evaluate the presence of auto-peep in a patient? A. flow/time B. flow/volume C. pressure/time D. volume/pressure - ANSWER: A. flow/time The following data are obtained for a patient who is receiving VC, A/C ventilation: Peak pressure: 30 cm H2O Plateau pressure: 20 cm H2O Set Vt: 800 mL Exhaled Vt: 700 mL PEEP: 10 cm H2O What is the static compliance? A. 35 B. 40 C. 27 D. 70 - ANSWER: D. 70