100% VERIFIED ANSWERS!!
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
Which of the following will alter the oxygen concentration of an
air-entrainment mask? - CORRECT ANSWER-(4) Increasing the flow setting-NO
Occluding the air-entrainment ports-YES
Altering the size of the jet orifice-YES
The respiratory therapist 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 respiratory therapist 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
While assessing a pt who is receiving oxygen via transtracheal catheter, the
patient 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
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 respiratory therapist 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
, 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 capnogram 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
The primary hazard of an oropharyngeal airway device is: - CORRECT ANSWER-
The patient 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 patient 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
Patients with which of the following conditions are more likely to exhibit a lower
than predicted carbon monoxide diffusing capacity (DLCO)? - 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 respiratory therapist should suspect: -
CORRECT ANSWER-Electrolyte deficiency
Which of the following best describes the respiratory theapist response to
metabolic alkalemia? - CORRECT ANSWER-Metabolic alkalemia depresses the
respiratory center, causing hypoventilation
The respiratory therapist has just suctioned blue, creamy secretions from a
patient with a tracheostomy that wears the mask intermittent tube feedings.