NBRC TMC/CRT/RRT 2024 EXAM AND PRACTICE EXAM LATEST 500 QUESTIONS AND CORRECT DETAILED ANSWERS (100% CORRECT) |A+ GRADE ASSURED

NBRC TMC/CRT/RRT 2024 EXAM AND
PRACTICE EXAM LATEST 500
QUESTIONS AND CORRECT
DETAILED ANSWERS (100%
CORRECT) |A+ GRADE ASSURED
A 52 year-old post-operative cholecystectomy patient's breath
sounds become more coarse upon completion of postural
drainage with percussion. The respiratory therapist should
recommend
A. continuing the therapy until breath sounds improve
B. administering dornase alpha.
C. administering albuterol therapy.
D. deep breathing and coughing to clear secretions. -
...ANSWER...deep breathing and coughing to clear secretions.
A 65 kg spinal cord injured patient has developed atelectasis.
His inspiratory capacity is 30% of his predicted value. What
bronchial hygiene therapy would be most appropriate
initially?
A. IS / SMI
B. IPPB with normal saline
C. postural drainage and percussion
D. PEP therapy - ...ANSWER...IPPB with normal saline
A patient on VC ventilation has demonstrated auto-PEEP on
ventilator graphics. Which of the following controls, when
adjusted independently, would increase expiratory time?
1. Tidal volume
2. Respiratory Rate
3. Inspiratory flow
4. Sensitivity - ...ANSWER...1, 2, and 3 only
A 55 year-old post cardiac surgery patient has the following
ABG results: pH 7.50, PaCO2 30 torr, PaO2 62 torr, HCO3
25 mEq/L, SaO2 92%, HB 14 g/dL, BE +2. Venous blood gas
results are pH 7.39, PvCO2 43 torr, PvO2 37 torr, and SvO2
66%. Calculate the patient's C(a-v)O2.
A. 2.5 vol%
B. 4.0 vol%
C. 5.0 vol%
D. 5.5 vol% - ...ANSWER...5.0 vol%
Immediately after extubation of a patient in the ICU, the
respiratory therapist observes increasing respiratory distress
with intercostal retractions and marked stridor. The SpO2 on
40% oxygen is noted to be 86%. Which of the following
would be most appropriate at this time?
A. cool mist aerosol treatment
B. aerosolized racemic epinephrine
C. manual ventilation with resuscitation bag and mask
D. reintubation - ...ANSWER...reintubation
Which of the following information may be obtained from a
FVC maneuver during bedside pulmonary function testing?
1. FEV1
2. PEFR
3. FRC
4. RV - ...ANSWER...1 and 2 only
A patient who complains of dyspnea is noted to have a dry,
non-productive cough. On physical examination, breath
sounds are diminished on the right, tactile fremitus is
decreased and there is dullness to percussion over the right
lower lobe. The respiratory therapist should suspect that the
patient is suffering from
A. pneumonia.
B. pulmonary embolism.
C. pleural effusion.
D. bronchiolitis. - ...ANSWER...pleural effusion
Which of the following suction catheters would be appropriate
to use for a patient with a size 8.0 mm ID endotracheal tube?
A. 8 Fr
B. 10 Fr
C. 12 Fr
D. 14 Fr - ...ANSWER...12 Fr
A patient who is receiving continuous mechanical ventilation
is fighting the ventilator. His breath sounds are markedly
diminished on the left, there is dullness to percussion on the
left, and the trachea is shifted to the left. The most likely
explanation for the problem is that
A. the patient is disconnected from the ventilator.
B. the patient is experiencing diffuse bronchospasm.
C. the endotracheal tube has slipped into the right main stem
bronchus.
D. the patient has developed a left tension pneumothorax. -
...ANSWER...the endotracheal tube has slipped into the right
main stem bronchus.
What value for the apnea-hypopnea index (AHI) is consistent
with mild obstructive sleep apnea?
A. Less than 5
B. 5 to 15
C. 16 to 30
D. Greater than 30 - ...ANSWER...5 to 15
While monitoring a newborn utilizing a transcutaneous
monitor, you notice a change in PtcO2 from 60 to 142 torr and
simultaneously the (PtcCO2) changes from 37 to 2 torr. What
is the most likely explanation for these changes?
A. Upper airway obstruction
B. Poor peripheral perfusion
C. Air leak around the sensor
D. Device is out of range - ...ANSWER...Air leak around the
sensor
A patient on the general medical ward is on a 28% air
entrainment mask with the flowmeter set at 5 L/min. What is
the total flow delivered to the patient?
A. 5 L/min
B. 55 L/min
C. 88 L/min
D. 140 L/min - ...ANSWER...55/Lmin
Sleep apnea can be defined as repeated episodes of complete
cessation of airflow for
A. 5 seconds or longer.
B. 10 seconds or longer.
C. 15 seconds or longer.
D. 20 seconds or longer. - ...ANSWER...10 seconds or longer
A patient in the ICU receiving mechanical ventilation has just
undergone a fiberoptic bronchoscopy procedure in which a
tissue biopsy was collected. Immediately following the
procedure, the respiratory therapist notes that the peak
inspiratory pressure on the ventilator has increased. Potential
causes for this include all of the following EXCEPT
A. hypoxemia.
B. pneumothorax.
C. pulmonary hemorrhage
.D. bronchospasm/laryngospasm. - ...ANSWER...hypoxemia
What size endotracheal tube would be appropriate for an adult
female patient?
A. 6.0 to 6.5 mm
B. 6.5 to 7.0 mm
C. 7.0 to 7.5 mm
D. 7.5 to 8.0 mm - ...ANSWER...7.0 to 7.5 mm
The respiratory therapist has been asked to measure AutoPEEP on a patient receiving mechanical ventilation. In order
to do this, the therapist should
A. initiate an inspiratory hold just after the next ventilatordelivered breath.
B. initiate an expiratory hold just prior to the next ventilatordelivered breath.
C. subtract Pplat from Pdyn.
D. subtract set PEEP from the measured Pplat. -
...ANSWER...initiate an expiratory hold just prior to the next
ventilator-delivered breath.
A patient who suffered trauma in an ATV accident is being
monitored in the ICU. A pulmonary artery catheter has been
placed and the following data is available:
PvO2 46 torr
PCWP 19 mm Hg
PAP (mean) 10 mm Hg
CVP 12 cm H2O
Cardiac Output 3L/min
The respiratory therapist should recommend
1. IV fluid challenge
2. positive inotropic agent
3. inhaled nitric oxide
4. diuretic therapy - ...ANSWER...2 and 4
What is the primary advantage of volume-controlled
ventilation as compared to pressure-controlled ventilation?
A. VC limits and controls PIP.
B. VC provides a constant minute ventilation.
C. VC ensures better patient-ventilator synchrony.
D. VC delivers a decelerating flow pattern. -
...ANSWER...VC provides a constant minute ventilation.
Bronchial breath sounds heard over the lung periphery
indicate
A. narrowed airways.
B. obstructed bronchi.
C. lung consolidation.
D. pulmonary edema. - ...ANSWER...lung consolidation.
During a pre-operative evaluation, bedside spirometry results
are as follows: FVC 88% of predicted, FEV1 85% of
predicted, FEV1/FVC 82% of predicted and FEF25-75 81%
of predicted. How should the respiratory therapist interpret
these results?
A. a mild restrictive disorder
B. a mild obstructive disorder
C. normal lung function
D. mixed obstructive/restrictive disorder -
...ANSWER...normal lung function
A 55 year-old male patient is being evaluated for pulmonary
rehabilitation. During a cycle ergometer cardiopulmonary
stress procedure, the patient has a heart rate of 100/min and a
respiratory rate of 20/min. He suddenly begins to complain of
chest pain and severe shortness of breath. The respiratory
therapist should
A. reduce the speed of the bike.
B. administer supplemental oxygen.
C. gradually reduce the workload and monitor closely.
D. terminate the procedure immediately. -
...ANSWER...terminate the procedure immediately.
At 1 minute post-delivery, a newborn has blue extremities
with a pink body, heart rate is 90/min, respiratory rate is
20/min with a weak cry, cough reflex is present, and there is
some flexion of the extremities. At 5 minutes post-delivery,
the infant is completely pink, heart rate is 140/min, respiratory
rate is 40/min, cough reflex is present, and the baby is active
with a strong cry. What APGAR scores should be assigned?
A. 4 & 8
B. 5 & 9
C. 5 & 10
D. 6 & 10 - ...ANSWER...6 & 10
The respiratory therapist is asked to administer 2.5 mg of
albuterol to a patient via small volume nebulizer. The
medication is available in a 0.5% solution. What volume of
albuterol should be administered?
A. 0.25 mL
B. 0.50 mL
C. 1.25 mL
D. 2.5 mL - ...ANSWER...0.50 mL
In order to verify the accuracy of a lab-based spirometer
device, the respiratory therapist should utilize a
A. rotameter.
B. 3.0 L syringe.
C. Wright respirometer.
D. pneumotachometer. - ...ANSWER...3.0 L syringe.
A young healthy adult with complaints of intermittent
wheezing is seen in the pulmonary clinic. A pre/post
bronchodilator spirometry reveals a normal study with no
reversibility. Which of the following should the RT
recommend?
A. Helium dilution study
B. DLCO
C. Plethysmography
D. Bronchial provocation - ...ANSWER...Bronchial
provocation
All of the following conditions can be treated with hyperbaric
oxygen (HBO) therapy EXCEPT
A. carbon monoxide poisoning.
B. decompression sickness.
C. anaerobic infections.
D. pulmonary hypertension. - ...ANSWER...pulmonary
hypertension.
The following ABG results are reported for a patient in the
ED on room air: pH 7.20; PaCO2 24 torr; PaO2 95 torr;
HCO3 8 mEq/L; SaO2 95%; BE -15 mEq/L. The respiratory
therapist should recommend
A. initiating oxygen therapy via nasal cannula at 4 L/min.
B. intubating and initiating mechanical ventilation.
C. administering sodium bicarbonate intravenously.
D. initiating non-invasive ventilation. -
...ANSWER...administering sodium bicarbonate
intravenously.
The physician asks the respiratory therapist to set ventilator
parameters that will deliver the lowest peak inspiratory
pressure possible. Which of the following inspiratory flow
patterns will enable the therapist to fulfill the physician's
request?
A. Decelerating
B. Square wave
C. Constant
D. Accelerating - ...ANSWER...Decelerating
Which of the following is needed to calculate alveolar oxygen
tension?
A. VD/VT, PAO2
B. BP and FiO2
C. PetCO2 and PaO2
D. QS/QT, deadspace - ....ANSWER...B.
Barometric pressure, FiO2, and PaO2 are all included in the
formula (BP stands for barometric pressure)
L/min/m2 is the unit of measure for:
A. Systemic vascular resistance
B. Cardiac output
C. Cardiac index
D. Stroke volume - ....ANSWER...C.
A spontaneously breathing patient has the following arterial
blood gas results:
pH 7.38 PaCO2 42 mmHgPaO2 76 mmHgHCO3- 24
mEq/LBE 0 mEq/L
Which of the following supplemental oxygen levels is most
appropriate?
A. 2 L/min nasal cannula
B. 5 L/min nasal cannula
C. non-rebreathing mask
D. Venturi mask at 30% - ....ANSWER...B.
A patient who is showing signs of hypoxemia should receive
supplemental oxygen. If the patient is not a COPD patient and
the situation is not an emergency, then the proper
supplemental oxygen is an adult therapeutic dose, which is
40% to 55%. Of the options available only 5 L/min nasal
cannula will approach this. Other options are either
insufficient or too much