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NBRC TMC PRACTICE NEWEST ACTUAL EXAM COMPLETE TESTBANK ALL 431 QUESTIONS AND CORRECT DETAILED ANSWERS (VERIFIED ANSWERS) |ALREADY GRADED A+.$23.99
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NBRC TMC PRACTICE NEWEST ACTUAL EXAM COMPLETE
TESTBANK ALL 431 QUESTIONS AND CORRECT
DETAILED ANSWERS (VERIFIED ANSWERS) |ALREADY
GRADED A+.
A patient complains of shortness of breath during a nebulizer treatment is
hypertonic saline. The respiratory therapist should do which of the
following?
A. Discontinue therapy and notify the physician
B. Add Albuterol to the nebulizer treatment
C. Switch to normal saline
D. Switch to hypotonic saline✔✔ ANSWER✔✔A.
Adverse reactions during any therapy should be responded to initially by
discontinuing therapy and notifying the physician.
In preparation for a helium dilution study, a respiratory therapist is
calibrating the helium analyzer. While exposing the analyzer to ambient
room air, what will the analyzer read for helium concentration?
A. 21%
B. 0%
C. 2%
D. 79%✔✔ ANSWER✔✔B.
To calibrate a helium analyzer, sometimes called a Wheatstone Bridge, the
device must be calibrated to room air for the low calibration and to a known
level of helium for the high calibration. Because room air has no significant
,level of helium, helium analyzers should read 0% when exposed to ambient
room air conditions.
Which of the following will result in a decrease in mean airway pressure for a
patient on a mechanical ventilator in the assist/control mode?
A. use of expiratory retard
B. institution of a 1.0 sec inspiratory plateau
C. decrease in inspiratory time
D. decreasing inspiratory flow✔✔ ANSWER✔✔C.
Decreasing inspiratory time will lower the amount of time a patient is
exposed to positive pressure and will therefore result in a decrease in mean
airway pressure. Use of expiratory retard, increasing inspiratory flow, and
institution of an inspiratory plateau will all lead to increased mean airway
pressure.
A chest radiograph of an abdominal post-operative patient shows abnormal
elevation of the left hemidiaphragm. Which of the following conditions
explains the observation?
A. pneumothorax on the left
B. herniation of the left hemidiaphragm
C. hemothorax
D. atelectasis in the left lower lobe✔✔ ANSWER✔✔D.
Abnormal elevation of the left hemidiaphragm is an indication that the lung
on that side is smaller for some reason. This could be due to a partial
pneumothorax or profound atelectasis. Oftentimes, atelectasis can develop
as a result of surgery. Therefore, the raised hemidiaphragm, combined with
,the postoperative status of the patient, indicate the most likely problem is
atelectasis in the left lower lobe.
Immediately following oral endotracheal intubation, the respiratory
therapist should confirm proper placement by doing which of the following?
A. Assess end-tidal CO2 with a colorimetric capnometer
B. Obtain a anterior-posterior chest radiograph
C. Auscultate the neck
D. Ensure tube markings are between 20-24 at the teeth✔✔ ANSWER✔✔B.
To determine the location and placement of an endotracheal tube a chest x-
ray is appropriate. Because the patient is intubated it is not likely that the
patient is ambulatory and therefore must undergo a chest x-ray in bed.
When shooting a chest x-ray bed, the proper technique is called an AP chest
radiograph, or anterior-posterior x-ray.
The physician orders mechanical ventilator settings:
Mode assist/control VT 600 mLMandatory rate 10/minI:E 1:2FIO2 0.40PEEP
5 cm H2O
Which of the following represents the minimum inspiratory flow setting the
respiratory therapist should select?
A. 24 L/min
B. 60 L/min
C. 18 L/min
D. 40 L/min✔✔ ANSWER✔✔C.
There are several methods to determine the minimum flow needed to
accomplish specific minimum flow settings on a mechanical ventilator. One
, shortcut method is to add the I:E ratio numbers together and multiply it by
the minute ventilation. In this case, 1+2 = 3. Minute ventilation = (.6L x rate
of 10) = 6.0 L. 6.0 L x 3 = 18 L/min. This is the minimum flow. When
answering this question if the exact number is not available in the options,
the correct choice would be the next highest number. For instance, if 18 L
per minute was not an available option, the next best answer in this
question would be 24 L per minute.
A 65-kg (143-lb) male patient is in the intensive care unit after being found
unconscious and unresponsive with a suspected drug overdose. The
following ABG and clinical data are observed.
- pH: 7.30
- PaCO2: 50 mmHg
- PaO2: 82 mmHg
- HCO3-: 24 mEq/L
- BE: 0 mEq/L
- RR: 24 breaths per min
- VT: 260 mL
The respiratory therapist should recommend which of the following:
A. Intubate, VC, A/C ventilation
B. Oral intubation, CPAP 5 cm H2O, PS 6 cm H2O
C. Non-invasive ventilation with IPAP 10 cm H2O, EPAP 5 cm H2O
D. Manual resuscitation administer Narcan (naloxone)✔✔ ANSWER✔✔B.
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