Kettering- Therapeutic Procedures B Questions And Answers With Complete Solutions 100% Correct Answers

1. Question: A 5-year-old patient requires low-flow oxygen therapy. Which of the following devices should the respiratory therapist recommend? Answer: Nasal Cannula Explanation: The age of the child needs to be taken into consideration when choosing what device is best. A nasal cannula is appropriate because it doesn't interfere in the way of the child, and they should tolerate it. 2. Question: Which of the following formulas will calculate the number of hours an E cylinder will provide oxygen to a patient? Answer: tank pressure (PSI) x 0.3 / flowrate (L/min) / 60 Explanation: Factor cylinder for an E cylinder is 0.3. This formula will give you the hours a cylinder will last. 3. Question: A patient receives 28% oxygen via air entrainment mask. The patient repeatedly has the bed covers pulled up over the mask. Arterial blood gas results reveal a PaO2 of 168 torr. The physician asks the respiratory therapist for a recommendation. The therapist should? Answer: Switch the patient to a nasal cannula at 2L/Min Explanation: Air entrainment mask allows both oxygen and air and if patient is covering up the port then they will be receiving more oxygen than air thus causing the PaO2 to increase because they are receiving pure oxygen not blended with air. Nasal cannula is least likely to entrain air/gas. 4. Question: A 26-year-old patient with shortness of breath is admitted to the emergency room. The patient states that he was running in the park with a friend and could not catch his breath. Bedside assessment reveals the following data: Pulse: 120, Respirations: 25 br/min, Color: pale, SpO2: 89% on room air, Breath sounds: slightly diminished on the right. The respiratory therapist should? Answer: Administer 100% oxygen via non-rebreathing mask.Explanation: Since the patient is fairly stable and given to his SpO2 being 89% what he needs immediately is oxygen. Once given oxygen then you would proceed with other intervention. 5. Question: The respiratory therapist monitors a patient in the ICU following a cholecystectomy. The surgeon has written post-op orders for incentive spirometry Q1h while awake. The patient uses a volume-oriented incentive spirometer. The patient inhales to TLC and then exhales slowly to FRC. What recommendation should the therapist provide to improve the distribution of ventilation? Answer: Have the patient perform an inspiratory hold. Explanation: Since the patient has good breathing, an inspiratory hold while doing good breathing will improve distribution of ventilation. 6. Question: A patient with obstructive sleep apnea receives CPAP therapy via a mask during hours of sleep. The inspiratory pressure is fluctuating between +5 and -8 cm H2O. Which of the following should the respiratory therapist recommend? Answer: Increase the flow rate. Explanation: CPAP will always be positive pressure so in order to maintain a positive pressure you must have adequate flow in order to maintain that pressure. If the patient is inhaling faster than the equipment is delivering the gas then pressure will drop. 7. Question: An air/oxygen proportioner is used to provide an FIO2 of 0.55 by a non-rebreather mask. The blender alarm is sounding. Which of the following is the most likely cause? Answer: Low oxygen inlet pressure Explanation: A blender alarm normally sounds because you are either low on oxygen or air. The alarm will only go off when the pressure is low on the blender.