The primary hazard of an oropharyngeal airway device is: - CORRECT ANSWER--the
ot may gag or fight the device
While manually ventilating a pt with a bag-valve resuscitator during cardiopulmonary
resuscitation (CPR), the RT notices that the oxygen reservoir is missing. The therapist
should conclude that: - CORRECT ANSWER--the FiO2 will most likely be less than 1.0
A pt with a tracheostomy tube is producing moderate amounts of thick, tenacious
sputum. The best device for this pt would be: - CORRECT ANSWER--a heated large
reservoir air-entrainment jet nebulizer
Which of the following humidity devices is the most economical choice for use in an
intubated, mechanically ventilated pt who only needs short-term ventilation? -
CORRECT ANSWER--heat moisture exchanger
The RT noticed that the CPAP pressure indicated on the low pressure monitor is
consistently less than the preset CPAP of an infant's nasal CPAP system. Which of the
following should the therapist do FIRST to correct this problem? - CORRECT
ANSWER--tighten all connections
While the RT is checking the oxygen setup of a pt on a 2L/min nasal cannula, the pt
complains of not being able to detect any oxygen flow from the cannula. Which of the
following actions would be appropriate? - CORRECT ANSWER--tighten all connections
Which of the following will alter the oxygen concentration of an air-entrainment mask? 1
Increasing the flow setting-YES Occluding the air-entrainment ports-YES Altering the
size of the jet orifice-YES 2 Increasing the flow setting-NO Occluding the air-
entrainment ports-YES Altering the size of the jet orifice-NO 3 Increasing the flow
setting-YES Occluding the air-entrainment ports-NO Altering the size of the jet orifice-
YES - CORRECT ANSWER-4 Increasing the flow setting-NO Occluding the air-
entrainment ports-YES Altering the size of the jet orifice-YES
While assessing a pt who is receiving oxygen via transtracheal catheter, the ot
complains of a persistent, nonproductive cough and tracheal irritation. The appropriate
action at this time would be what? - CORRECT ANSWER--reposition the catheter
A 65-year old asian female has just been admitted to the ED. Through an interpreter, it
is learned that the pt is complaining of palpitations and chest discomfort. What would be
indicated? - CORRECT ANSWER--12-lead ECG
,A critically ill pt with hypovolemic shock is being monitored in the ICU. Measurement of
which of the following would indicate if tissue hypoxia is present? - CORRECT
ANSWER--SVO2
Prior to taking a pulmonary artery wedge pressure (PCWP) reading, the RT ensure that:
- CORRECT ANSWER--the transducer is properly leveled and zeroed
The fiberoptic bronchoscope is usually preferred device during bronchoscopy b/c its: -
CORRECT ANSWER--flexibility
The capnograph tracing above was obtained from a mechanically ventilated pt. On the
basis of this tracing, the RT should: - CORRECT ANSWER--check the exhalation valve
A RT is performing nasotracheal suctioning. During the procedure, the therapist
occludes the catheter's thumb port; there is no vacuum. The therapist could do all of the
following EXCEPT - CORRECT ANSWER--use a longer suction catheter
A 27 year old male has been admitted to the ED after he was found unconscious in the
bedroom closet of his home following a house fire. He is currently receiving
supplemental oxygen via a non rebreather mask. An arterial blood gas sample is
obtained. The values are as follows: pH 7.22 PaCO2 45 mm Hg PaO2 345 mm Hg
HCO3- 118 mEq/L SaO2 100% Which of the following would be most appropriate at this
time? - CORRECT ANSWER--analyze the blood sample using a CO-oximeter
Which of the following would be most helpful to evaluate the effectiveness of secretion
clearance therapy? - CORRECT ANSWER--chest x-ray
A 46 year old male is presented to the RT clinic with complaints of cough, night sweats,
and loss of appetite. The pt has a history of IV drug abuse and hep B. The therapist
recommended? - CORRECT ANSWER--tuberculin skin test
The PFT results of an adult female are as follows: Measured Predicted %Predicted
FVC(L): 2.63 3.11 84 FEV1(L): 1.58 2.28 69 FEV1/FVC(%): 60 73 FEF25%-
75%(L/Sec): 0.59 2.56 23 PEF (L/Sec): 4.90 5.78 85 On the basis of these data, the
correct interpretation is: - CORRECT ANSWER--small airway obstruction
A spontaneous breathing trial (SBT) should be terminated and the pt re-evaluated if: -
CORRECT ANSWER--the SpO2 decreases by 5%
Shortly after administration of a sedative to a struggling and combative mechanically
ventilated pt, the RT noticed a significant decrease in pulmonary compliance. Which of
the following could explain the change? - CORRECT ANSWER--a pneumothorax has
occurred
, Following the initiation of pulmonary artery pressure monitoring for an adult male being
mechanically ventilated, the following data is recorded: PAWP: 24 mm Hg C(a-v)O2: 2-4
vol% These results are most likely associated with which of the following? - CORRECT
ANSWER-hypovolemia
If the PETCO2 is 22 mm Hg and the dead space to tidal volume ratio (VD/VT) is , the
resulting PaCO2 is approximately : - CORRECT ANSWER--45 mm Hg
Which of the following acid-base disorders would most likely be present in a pt with
renal failure who is receiving inadequate mechanical ventilation? - CORRECT
ANSWER--metabolic acidosis/respiratory acidosis
Pts with which of the following conditions are more likely to exhibit a lower than
predicted carbon monoxide diffusing capacity (DLCO)?
1 Idiopathic Pulmonary Fibrosis- YES COPD-YES Anemia-YES Pulmonary Vascular
disease-YES
2 Idiopathic Pulmonary Fibrosis- YES COPD-NO Anemia-YES Pulmonary Vascular
disease-NO
3 Idiopathic Pulmonary Fibrosis- NO COPD-YES Anemia-NO Pulmonary Vascular
disease-YES
4 Idiopathic Pulmonary Fibrosis-YES COPD-YES Anemia-YES Pulmonary Vascular
disease-NO - CORRECT ANSWER-1 Idiopathic Pulmonary Fibrosis- YES COPD-YES
Anemia-YES Pulmonary Vascular disease-YES
The results of a 12-lead ECG obtained from a 44 year old female reveal flattened T
waves with prominent U waves. The RT should suspect: - CORRECT ANSWER--
electrolyte deficiency
Which of the following best describes the RT response to metabolic alkalemia? -
CORRECT ANSWER--metabolic alkalemia depresses the respiratory center, causing
hypoventilation
The RT has just suctioned blue, creamy secretions from a pt with a tracheostomy that
wears the mask intermittent tube feedings. Which of the following actions would be
appropriate? - CORRECT ANSWER--check the integrity of the tracheostomy cuff
8 During a CPAP titration during sleep procedure, the pt becomes agitated and refuses
to continue to wear the mask when the CPAP is increased from 15 cm H2O ro 16 cm
H2O. The previous setting of 15 cm H2O, the pt continued to have obstructive
respiratory events. Which of the following should be done? - CORRECT ANSWER--
switch to BiPAP titration
Which of the following are potential complications that might occur as a result of an
under inflated endotracheal tube's cuff?
1 Tracheomalacia- YES Tracheostenosis- YES Gastric Insufflation- YES Aspiration-NO
2 Tracheomalacia- NO Tracheostenosis- NO Gastric Insufflation- YES Aspiration-YES