TMC 3 - C&S 2025/26 EXAM QUESTIONS WITH COMPLETE SOLUTIONS.

96 kg (211 lb.), 174 cm (5 ft 10 in.) 66 year old male patient is receiving ventilatory support via a volume ventilator in the pressure support (PSV) mode. Ventilator settings and arterial blood gas results are as follows: Ventilator Settings PSV: 12 cmH2O FIO2: 0.45 CPAP: 5 cmH2O Arterial Blood Gases pH: 7.41 PaCO2: 36 mmHg HCO3: 22 mEq/L PaO2: 81 mmHg On the basis of this information, the respiratory therapist should: continue current therapy The respiratory therapist is asked to perform an optimal PEEP study for a mechanically ventilated 61 year old, 82 kg male patient. The data collected during the PEEP study are as follows: 5 The physician has requested an increase in the delivered tidal volume for a patient who is receiving ventilatory support in a time-cycled, pressure-limited mode. The therapist could recommend all of the following EXCEPT: increasing the PEEP A pre and post bronchodilator study was performed on a 36-year old female patient. The results are as follows: insignificant bronchodilator response is present A 37 year old adult male is transferred from the ED to the respiratory ward. Shortly after admission to the ward, the patient becomes cyanotic and drowsy. Which of the following should the therapist do or recommend? perform arterial blood gas Which of the following best explains the results of the chest x-ray shown to the right? there is a right-sided tension pneumothorax with mediastinal deviation to the leftThe high respiratory rate and I:E ratio ventilator alarms have activated on mechanically ventilated adult patient who has a long history of chronic CO2 retention. Which of the following is most likely to occur as a result of this situation? increased hyperinflation and air trapping The following arterial blood gas data were recorded from an adult female patient prior to extubation and 20 minutes following extubation the affinity of hemoglobin for oxygen has decreased A 57 kg female patient who just underwent thoracic surgery requires mechanical ventilation. The most appropriate initial tidal volume for this patient is: 450mL Fifteen minutes following orotracheal extubation, an adult female patient becomes increasingly agitated with signs of tachycardia and tachypnea. Auscultation reveals clear breath sounds with evidence of stridor. An aerosolized racemic epi treatment was administered. Following the treatment, the stridor is more pronounced reintubate the patient An adult female patient has just been orally intubated and is now being manually ventilated. On auscultation, the RT notes the absence of breath sounds, but hears gurgling over the epigastrium. Which of the following is the most appropriate action at this time? extubate and prepare for reintubation Incentive spirometry q2h while awake has been ordered for a postoperative thoracic surgery patient. After the respiratory therapist explains the therapy to the patient, he firmly refuses the procedure. Which of the following actions should the therapist take at this time? ask the patient to explain the reason for refusal An adult patient is receiving oxygen therapy via 50% air entrainment mask operating at 8L/min. If the flowmeter setting is decreased to 6 L/min, which of the following will occur? the total flow of the system will decrease A patient is receiving oxygen via nonrebreathing mask at 12 L/min. The RT notices that the valve is missing between the mask and the bag. Which of the following will occur as a result of this situation? The patient will rebreathe a portion of the exhaled air.When adjusting the pressure setting of a pneumatically powered, pressure cycled ventilator, the RT would be altering the: mean airway pressure During mechanical ventilation via a volume ventilator, the inspiratory threshold can be adjusted by which of the following? the sensitivity setting.