TMC Exam A Questions & Answers

A patient receiving mechanical ventilation has received Halcion in the last twenty minutes. The physician orders the institution of spontaeneous breathing trials to commence immediately. Which of the following medications would be most helpful to the patient? a. Meperidine b. Valium c. Romazicon (Flumazenil) d. Morphine Sulfate -ANSWER c. Romazicon (Flumazenil) In preparation for ventilator weaning the physician requests a VD/VT ratio assessment. Which of the following is needed to determine the deadspace-tidal volume ratio? a. Single breath nitrogen elimination and caponographic data b. Helium dilution study and an arterial blood gas c. Arterial blood gases and capnographic data d. Helium dilution study and single breath nitrogen elimination -ANSWER c. Arterial blood gases and capnographic data A respiratory therapist is determining a VD/VT ratio. Which of the following is needed to complete this analysis? a. VT and VA b. PetCO2 and PaCO2 c. FIO2 and PaO2 d. PECO2 and PaO2 -ANSWER b. PetCO2 and PaCO2 Which of the following is LEAST likely to promote the spread of nosocomial infection in a hospital? a. Poor hand washing among staff b. Frequent disconnection of a ventilator circuit c. Changing small volume nebulizer equipment every 48 hours d. Use of unit dose medication -ANSWER d. Use of unit dose medication Which of the following can be used to estimate the level of Hemoglobin? a. C(a-v)O2 b. PAO2 c. Theophylline level d. RBC -ANSWER d. RBC Which of the following alarms would be most important for a patient receiving positive pressure ventilation by a pressure-cycled ventilator? a. Low volume b. I:E ratio c. Low FIO2 d. High pressure -ANSWER a. Low volume Patients with large necks who experience frequent dislodging of their tracheostomy tubes need (a) a. Longer tracheostomy tube b. Shorter tracheostomy