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NBRC EXAM CERTIFIED RESPIRATORY THERAPIST EXAM NEWEST PRACTICE TEST FOR ACTUAL EXAM 2025 QUESTIONS AND DETAILED CORRECT ANSWERS WITH RATIONALE$26.99
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NBRC EXAM CERTIFIED RESPIRATORY
THERAPIST EXAM NEWEST PRACTICE
TEST FOR ACTUAL EXAM 2025
QUESTIONS AND DETAILED CORRECT
ANSWERS WITH RATIONALE
A 2-year old child enters the emergency room. The mother
states that the child was playing with friends and
developed violent coughing and unilateral wheezing.
Physical examination reveals a hyperresonant percussion
note on the left and resonant percussion on the right.
Inspiratory and expiratory chest films indicate air trapping
with no foreign bodies "noted." The respiratory therapist
should suspect the child has.
a.pneumothorax
b.orthopnea
c.aspirated a foreign object
d.tachyphylaxis Correct Answer Unilateral wheezing
indicates aspirated object and fact that the child was
playing with friends causes you to believe the child
inhaled a small toy or something, hyperresonant
percussion indicates air trapping, so you are thinking
foreign object but x-ray says no foreign bodies
"noted." Just because it says "noted" does not mean
something is not there, it just means it could not be
seen on the xray, also if the child had swallowed a
small plastic toy, "plastic" does not show up on xrays
(radiolucent). The ANSWER is C
,A patient is admitted to the ICU complaining of nausea
and chest pain. A nasogastric tube has been inserted to
help relieve the nausea. The patient was started on Lasix
and nitroglycerin. Which of the following should be
monitored to closely identify side effects at this time.
a. Cardiac enzymes
b. Serum electrolytes
c. Arterial blood gases
d. Digitalis levels Correct Answer Since the patient
received Lasix and nasogastric tube, they are losing
fluids, and a side effect of fluid loss is a decrease in
electrolytes, so ANSWER is B (there isn't enough
evidence of heart attack to justify cardiac enzymes,
also they are used to confirm a heart attack).
Which of the following will determine aortic pulse pressure.
a. systolic + systolic + diastolic/3
b. diastolic + pulse pressure/3
c. systolic pressure - diastolic pressure
d. stroke volume x heart rate x 10. Correct Answer Aortic
pulse pressure is just the difference between systolic
and diastolic pressure, so ANSWER is C
A 32-week gestational age infant is receiving mechanical
ventilation for hyaline membrane disease. The patient
required a chest tube for a persistent pneumothorax. Two
days later the chest radiograph reveals bilateral
radiolucency, midline mediastinum, and the right
hemidiaphragm slightly elevated. This would indicate
A. atelectasis.
,B. bronchopulmonary dysplasia.
C. fluid overload.
D. resolution of a pneumothorax. Correct Answer bilateral
means both sides, radiolucency refers to dark, midline
mediastinum is right where is should be, the right
hemidiaphragm slightly elevated is normal; so this
actually indicates everything is normal. With
atelectasis we would see patchy infiltrates, loss of
volume, with bronchopulmonary dysplasia it would
look similar to ARDS, with fluid overload you would
see pattern similar to butterfly or batwing similar to
pulmonary edema, so the best
ANSWER is D and the pneumothorax has resolved.
A chest X-ray shows increased retro-sternal air, flat
hemidiaphram, decreased movement, and no vascular
markings on the right side. These signs would be most
likely associated with:
A. pneumothorax
B. pleural effusion
C. pneumonia
D. flail chest Correct Answer The flat hemidiaphram
indicates pneumothorax, so the ANSWER is A.
What is the normal range for the pulmonary artery systolic
pressure in an adult?
A. 2-6 mm Hg
B. 4-12 mm Hg
C. 9-18 mm Hg
, D. 21-28 mm Hg Correct Answer The normal pressure is
25 mm Hg, so the ANSWER is D 21-28 mm Hg
While assessing a patient's breath sounds the respiratory
therapist notes that when the patient is instructed to say
the letter "E", it comes through the stethescope sounding
like "aaaahhh". This change in the sound is associated
with which of the following conditions?
A. Pleuritic inflammation
B. Pneumonia
C. Bronchospasm
D. Epiglotitis Correct Answer The sound aaaaahhhhh is
egotheny and is associated with consolidation in the
lung, so the ANSWER is B pneumonia. Pleural
inflammation would be a crackling crunching sound,
bronchospasm would sound like wheezing, and
epiglottitis would be stridor.
An 1800 g neonate in the NICU is being monitored with a
TcPO2 electrode. The TcPO2 electrode is reading 42 torr
with the temperature set at 38oC. The PO2 from an
umbilical artery sample is 72 torr. Which of the following
would best explain the difference in these readings?
A. There was an error in the arterial blood gas results.
B. The TcPO2 electrode needs to be repositioned.
C. The TcPO2 electrode temperature setting is too low.
D. The TcPO2 electrode has been dislodged. Correct
Answer TcPO2 should be set at 43-45 C so the
electrode is not hot enough to make the device work.
There is not enough profusion with the electrode so
you need to raise the temperature on the electrode, so
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