NBRC / TMC / RRT Exam 2025 Test Bank
VERIFIED QUESTIONS WITH CORRECT
DETAILED ANSWERS & RATIONALES | ATI RN
COMPREHENSIVE PREDICTOR WITH NGN
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A patient is receiving hyperinflation therapy with an IPPB machine and a mouth
seal. The respiratory therapist notices the pressure manometer needle falls back
to -10 cm H2O before the pressure-supported breath begins. Which of the
following can the respiratory therapist do to help this situation?
A. Increase sensitivity
B. Decrease inspiratory pressure
C. Push the air-mix knob in
D. Increase flow –
A+ TEST BANK 1
, NBRC / TMC / RRT Exam 2025
Correct Answer :A.
The negative deflection of the pressure needle to -10 cmH2O before the
machine cycles into inhalation is too significant and will ultimately increase the
work of breathing for the patient. To counteract the amount of pressure needed
to cycle the machine, sensitivity should be increased.
A respiratory therapist is treating all patients in the intensive care unit as if they
have HIV and hepatitis. This approach is called
A. patient discrimination.
B. enteric isolation.
C. co-horting.
D. standard precautions. –
Correct Answer :D.
The standard precautions (also called universal precautions) approach includes
treating all patient as if they are infectious.
What is indicated by an increasing gap between SaO2 values and SvO2 values
while the C(a-v)O2 is also increasing?
A. an increase in cardiac index
B. decreasing oxygen consumption at the tissue level
C. an increase in SVRI
D. a decrease in cardiac output –
Correct Answer :D.
A+ TEST BANK 2
, NBRC / TMC / RRT Exam 2025
The following clinical information is available for a patient with chronic
congestive heart failure being considered for home oxygen needs. What is the
appropriate oxygen treatment plan for home?
SpO2 #1: room air, resting: 89%
SpO2 #2: 2 L/min NC resting: 95%
A. further evaluation is needed
B. room air
C. continuous supplemental oxygen
D. oxygen as needed –
Correct Answer :C.
Home oxygen therapy is indicated for CHF patients to maintain oxygen
saturations above 90%. While 89% may be acceptable for COPD patients, it is
insufficient for patients with heart disease.
The following patient data is observed:
Blood gas and CO-oximeter results
pH 7.35
PaCO2 27 torr
PaO2 40 torr
Hemoglobin 14.0 g/dL
Oxyhemoglobin 96%
A+ TEST BANK 3
, NBRC / TMC / RRT Exam 2025
HCO3- 13 mEq/L
Carboxyhemoglobin 2%
Methemoglobin 2%
SaO2 76%
BE -11 mEq/L
The respiratory therapist should
A. report SaO2 as 76%
B. administer sodium bicarbonate
C. perform a calibration of the instrument and repeat the analysis
D. administer potassium chloride, IV –
Correct Answer :C.
A close examination of the blood gas reveals some contrasting information.
Oxyhemoglobin is 96% while the O2 sat is only 76%. These data indicate a need
to recalibrate the instrument and repeat the analysis.
Which of the following could cause focal atelectasis in the right lobe?
A. bacterial pneumonia
B. pneumothorax
C. a pulmonary effusion
D. a foreign body aspirate - Correct Answer :D.
Focal atelectasis (in a specific isolated area) would most likely be caused by
foreign body aspiration, compared to the other options listed.
A+ TEST BANK 4