NBRC EXAM Comprehensive Resource To Help You Ace Exams Includes Frequently Tested Questions With ELABORATED 100% Correct COMPLETE SOLUTIONS Guaranteed Pass First Attempt!! Current Update!! Instant Download Pdf

NBRC EXAM Comprehensive Resource To Help You Ace Exams Includes Frequently Tested Questions With ELABORATED 100% Correct COMPLETE SOLUTIONS Guaranteed Pass First Attempt!! Current Update!! Instant Download Pdf 1. After injecting a small amount of air into the balloon of a pulmonary artery catheter, the respiratory therapist sees a small amplitude change with the mean pressure reading 2 points below the PA end-diastolic pressure. Based upon this information, the therapist should conclude that A. there is pressure dampening. B. the transducer is placed too high. C. there is an obstruction in the catheter. D. this is a normal wedge tracing. - Correct Answer: A small amplitude change is normal and the mean pressure reading 2 points below the pulmonary artery end-diastolic pressure is also normal, so the ANSWER is D. 2. A 32-week gestational age infant is receiving mechanical ventilation for hyaline membrane disease. The respiratory therapist suspects that a pneumothorax has developed and performs transillumination, which reveals a brightly illuminated left thorax. The respiratory therapist's FIRST action should be to A. insert a chest tube and connect to a pleural suction system. Correct Answer: B. perform a fiberoptic bronchoscopy. C. obtain a STAT chest film. D. suction the infant. Since a pneumothorax was suspected, illumination was done and revealed a "brightly illuminated left thorax" (a halo effect would be normal). A brightly illuminated thorax indicates there is definitely too much air or a pneumothorax in the left lung. Whenever there is a pneumothorax, you don't need more information, you need to insert a chest tube and connect to a pleural suction system, so the ANSWER is A. 3. A patient with a history of myasthenia gravis has just been admitted for increased muscle weakness. The respiratory therapist should recommend which of the following diagnostic tests to monitor the patient's drug therapy? A. polysomnography B. electroencephalography C. tensilon challenge test D. methacholine challenge test - Correct Answer: Polysomnography is a sleep study, Electroencephalography is an EEG brain test, Methacholine Challenge Test is a pulmonary function test used to check the reactivity of a patients airways, it will induce bronchospasm; Tensilon Challenge Test is specifically for Myasthenia Gravis, it helps them breath right away but only lasts a few minutes, so the ANSWER is D. 4. While assessing a patient's breath sounds the respiratory therapist notes that when the patient says "ninety-nine", it sounds very loud through the stethescope. This would be associated with which of the following conditions? A. Pneumothorax B. Pneumonia C. Pleural effusion- Correct Answer: D. Epiglottitis 99 is a sound that produces vibrations in the lung, if 99 sounds very loud through the stethoscope you know consolidation is present, so the ANSWER is B. Pleural effusion you don't usually hear anything. 5. A 47-year-old patient admitted for sepsis has a CaO2 value of 12.5 vol%. The patient does not appear cyanotic. Which of the following would be the most important to further evaluate the patient's oxygenation status? A. PaO2 B. SaO2 C. Hb - Correct Answer: D. PAO2 CaO2 IS best measurement of oxy delivered to the tissues, normal is 18-20%, this patient's is 12.5% which is low so patient is suffering from anemia (not enough oxy rich hemoglobin). So ANSWER is C. 6. The tip of a catheter used to measure the wedge pressure should be positioned in the: A. superior vena cava B. right atrium C. pulmonary artery Correct Answer: D. pulmonary vein Tip of catheter used to measure the wedge pressure should be positioned in the... Answer C pulmonary artery 7. A 64-year-old patient is being resuscitated for full cardiopulmonary arrest. After several unsuccessful attempts, the patient is orally intubated with a size 7.0 mm endotracheal tube. The physician is unable to establish a peripheral or central intravenous line. The ECG monitor now shows the following rhythm (sinus rhythm with regular positive p-wave, bradycardia). The respiratory therapist should recommend administration of: A. lidocaine by small volume nebulizer. B. atropine through the endotracheal tube. Correct Answer: C. epinephrine by intra-cardiac injection. D. amiodarone by intraosseous injection. - Graph shows sinus rhythm with regular positive p-wave, bradycardia (slow heart rate, heart beat more than 5 boxes wide is bradycardia; boxes less than 3 wide is tachycardia). Since no IV can be inserted, we will administer drugs through endotracheal tube.... but what drug...lidocaine would be for gag reflex or coughing, epinephrine very powerful used for emergencies, for flat line, amiodarone might be used for ventricular disrythmias, pvc's; atropine is for Bradycardia so ANSWER is Atropine. 8. A patient involved in a motor vehicle accident has sustained a long bone fracture and remains in traction. The patient suddenly complains of chest pain, and becomes tachypneic and tachycardiac. To determine the cause of the problem the respiratory therapist should recommend A. administering 100% oxygen. B. a V/Q scan. C. streptokinase. D. a STAT chest x-ray. - Correct Answer: long bone fracture combined with patient just lying around makes them very susceptible for pulmonary emboli; so which of these 4 would best find pulmonary emboli. A V/Q scan will show areas of ventilation and profusion and pulmonary emboli could cause area of deadspace, so ANSWER is B (streptokinase is an effective clot buster, STAT chest x-ray would be helpful but not be the best for diagnosing emboli). 9. The respiratory therapist is called to the emergency department to evaluate a patient who was brought in via an ambulance due to a motor vehicle accident. The patient is cold and clammy with a blood pressure of 82/46 mm Hg. The ECG monitor shows sinus tachycardia with occasional PVC. Which of the following should the therapist evaluate at this time? A. Serum electrolytes B. Cardiac enzymes C. Hb and Hct levels D. 12 lead ECG - Correct Answer: Patient seems to be experiencing shock, serum electrolytes would be a good choice, cardiac enzymes would be good but very expensive, 12 lead ECG is another good test but more appropriate if we were mainly concerned with the heart; Hb and Hct most closely corresponds to shock because you know the patient was in an accident and probably had a lot of blood loss, so ANSWER is C Hb and Hct