NBRC TMC EXAM Z AND S 2026 LATEST UPDATE
QUESTIONS AND CORRECT VEIFIED ANSWERS
ALREADY GRADED A+
Which of the following is true regarding the interpretation of these results?
A. compensated metabolic alkalosis
B. compensated respiratory acidosis
C. acute respiratory acidosis
D. metabolic acidosis - ANS-The correct answer is : C
A patient in a current myasthenic crisis is being monitored every 2 hours. The following data is
available:
1 pm, 3 pm, 5 pm
VC (L) 2.8, 2.4, 1.6
VT (mL) 500, 485, 400
MIP (cm H2O) -48, -35, -30
The respiratory therapist should recommend
A. intubate and initiate mechanical ventilatory support
B. continue to monitor the patient closely
C. manually ventilate with a bag-valve-mask
D. administer Tensilon - ANS-The correct answer is : B
An orally intubated patient is breathing spontaneously through an 8.0 mm ET tube. In the
ambient air, humidity indicates only 22 mg per liter of air. Based on this, what humidity deficit
will the respiratory therapist have to make up to completely meet the humidity needs of the
patient?
,A. 44 mg/L of gas
B. 22 mg/L of gas
C. 12 mg/L of gas
D. 100 mg/L of gas - ANS-The correct answer is : B
A patient receiving oxygen via a pulse-dose oxygen system complains of difficulty breathing and
indicates she believes the cannula is not working properly. The respiratory therapist should
A. troubleshoot the pulse-dose regulator
B. instruct the patient call the manufacturer
C. instruct the patient to switch to her oxygen concentrator with a regular nasal cannula
D. replace the oxygen tank - ANS-The correct answer is : C
One hour after performing quality control on a blood gas analyzer, a respiratory therapist
obtains arterial blood from a patient breathing supplemental oxygen at 2 L/min by nasal
cannula. The following blood gas results are available:
pH 7.41
PaCO2 39 torr
PaO2 190 torr
HCO3- 25 mEq/L
BE -1 mEq/L
The respiratory therapist should
A. replace the Sanz electrode, repeat the analysis
B. perform a two-point calibration and repeat the analysis
C. recommend discontinuing supplemental oxygen based on these results
D. report the blood gas results - ANS-The correct answer is : B
,Which of the following patients does NOT require additional help to make up the humidity
deficit during ventilation?
A. A patient with a tracheostomy
B. A spontaneously breathing patient who is intubated nasally
C. A patient who is orally intubated with an endotracheal tube
D. A patient using an oral pharyngeal airway - ANS-The correct answer is : D
The respiratory therapist analyzes the blood from a patient rescued from an area lake. The
patient had been ice fishing when the ice broke and he plunged into the water. Rescuers
indicate it took about 5 minutes to get the patient out. The patient remains hypothermic. Blood
gas analysis reveals
pH 7.50
PaCO2 28 torr
PaO2 65 torr
The respiratory therapist should suspect erroneous readings in which of the following?
A. PaCO2 would be erroneously high
B. PaO2 would read erroneously low
C. pH would be erroneously low
D. both PaO2 and PaCO2 would read erroneously high - ANS-The correct answer is : B
Which of the following laboratory examinations would be helpful in further assessing a patient
with diabetic ketoacidosis?
A. creatinine
B. glucose level
C. respiratory quotient
D. urine specific gravity - ANS-The correct answer is : B
, A patient is receiving IPPB therapy by mouthpiece following abdominal surgery and is still
somewhat lethargic from the anesthesia. During the treatment, the respiratory therapist notes
the IPPB machine frequently fails to cycle into expiration. Which of the following should the
therapist do to correct the problem?
A. Replace the mouthpiece with an inflatable mask
B. Increase the flow
C. Lower the pressure
D. Increase the sensitivity - ANS-The correct answer is : A
A radiological report is placed in the medical record that describes the results of a chest
radiograph. The report indicates plate-like infiltrates bilaterally. This finding is consistent with
A. pulmonary edema
B. pleural effusion
C. atelectasis
D. pulmonary embolus - ANS-The correct answer is : C
A home care patient is ventilator dependent for more than 50% of the time. Which of the
following is necessary to have?
A. back up ventilator
B. H-tank manifold with a bank of oxygen cylinders
C. non-rebreathing mask with an E-cylinder
D. bulk liquid oxygen supply - ANS-The correct answer is : A
A 4-year old child was playing with toys when he suddenly became tachypneic. Auscultation
reveals wheezing on the right side. Which of the following should the respiratory therapist
prepare?
A. aerosolized Lidocaine
B. racemic epinephrine
QUESTIONS AND CORRECT VEIFIED ANSWERS
ALREADY GRADED A+
Which of the following is true regarding the interpretation of these results?
A. compensated metabolic alkalosis
B. compensated respiratory acidosis
C. acute respiratory acidosis
D. metabolic acidosis - ANS-The correct answer is : C
A patient in a current myasthenic crisis is being monitored every 2 hours. The following data is
available:
1 pm, 3 pm, 5 pm
VC (L) 2.8, 2.4, 1.6
VT (mL) 500, 485, 400
MIP (cm H2O) -48, -35, -30
The respiratory therapist should recommend
A. intubate and initiate mechanical ventilatory support
B. continue to monitor the patient closely
C. manually ventilate with a bag-valve-mask
D. administer Tensilon - ANS-The correct answer is : B
An orally intubated patient is breathing spontaneously through an 8.0 mm ET tube. In the
ambient air, humidity indicates only 22 mg per liter of air. Based on this, what humidity deficit
will the respiratory therapist have to make up to completely meet the humidity needs of the
patient?
,A. 44 mg/L of gas
B. 22 mg/L of gas
C. 12 mg/L of gas
D. 100 mg/L of gas - ANS-The correct answer is : B
A patient receiving oxygen via a pulse-dose oxygen system complains of difficulty breathing and
indicates she believes the cannula is not working properly. The respiratory therapist should
A. troubleshoot the pulse-dose regulator
B. instruct the patient call the manufacturer
C. instruct the patient to switch to her oxygen concentrator with a regular nasal cannula
D. replace the oxygen tank - ANS-The correct answer is : C
One hour after performing quality control on a blood gas analyzer, a respiratory therapist
obtains arterial blood from a patient breathing supplemental oxygen at 2 L/min by nasal
cannula. The following blood gas results are available:
pH 7.41
PaCO2 39 torr
PaO2 190 torr
HCO3- 25 mEq/L
BE -1 mEq/L
The respiratory therapist should
A. replace the Sanz electrode, repeat the analysis
B. perform a two-point calibration and repeat the analysis
C. recommend discontinuing supplemental oxygen based on these results
D. report the blood gas results - ANS-The correct answer is : B
,Which of the following patients does NOT require additional help to make up the humidity
deficit during ventilation?
A. A patient with a tracheostomy
B. A spontaneously breathing patient who is intubated nasally
C. A patient who is orally intubated with an endotracheal tube
D. A patient using an oral pharyngeal airway - ANS-The correct answer is : D
The respiratory therapist analyzes the blood from a patient rescued from an area lake. The
patient had been ice fishing when the ice broke and he plunged into the water. Rescuers
indicate it took about 5 minutes to get the patient out. The patient remains hypothermic. Blood
gas analysis reveals
pH 7.50
PaCO2 28 torr
PaO2 65 torr
The respiratory therapist should suspect erroneous readings in which of the following?
A. PaCO2 would be erroneously high
B. PaO2 would read erroneously low
C. pH would be erroneously low
D. both PaO2 and PaCO2 would read erroneously high - ANS-The correct answer is : B
Which of the following laboratory examinations would be helpful in further assessing a patient
with diabetic ketoacidosis?
A. creatinine
B. glucose level
C. respiratory quotient
D. urine specific gravity - ANS-The correct answer is : B
, A patient is receiving IPPB therapy by mouthpiece following abdominal surgery and is still
somewhat lethargic from the anesthesia. During the treatment, the respiratory therapist notes
the IPPB machine frequently fails to cycle into expiration. Which of the following should the
therapist do to correct the problem?
A. Replace the mouthpiece with an inflatable mask
B. Increase the flow
C. Lower the pressure
D. Increase the sensitivity - ANS-The correct answer is : A
A radiological report is placed in the medical record that describes the results of a chest
radiograph. The report indicates plate-like infiltrates bilaterally. This finding is consistent with
A. pulmonary edema
B. pleural effusion
C. atelectasis
D. pulmonary embolus - ANS-The correct answer is : C
A home care patient is ventilator dependent for more than 50% of the time. Which of the
following is necessary to have?
A. back up ventilator
B. H-tank manifold with a bank of oxygen cylinders
C. non-rebreathing mask with an E-cylinder
D. bulk liquid oxygen supply - ANS-The correct answer is : A
A 4-year old child was playing with toys when he suddenly became tachypneic. Auscultation
reveals wheezing on the right side. Which of the following should the respiratory therapist
prepare?
A. aerosolized Lidocaine
B. racemic epinephrine
