NBRC TMC PRACTICE QUESTIONS & CORRECT VERIFIED ANSWERS|
WITH RATIONALES|| 2025|26| LATEST UPDATE FOR PASS.
1. An infant with pneumonia is placed on CPAP with the initial level is 6 cm H20.
After the patient is placed on the system, the respiratory therapist notices that
the pressure falls to 2 cm H20 with each inspiration. What should be done to
correct the problem?
a. Tell the patient to relax and breath more slowly
b. Give the patient diazepam (Valium)
c. Increase the CPAP level to 8 cm H20
d. Increase the flow through the system ANS Increase the flow through the syste
Explain ANS Decreasing pressure with inspiration indicates inadequate gas flow. In-
creasing the flow should meet the patient's inspiratory flow needs and stabilize the
CPAP pressure.
2. A respiratory therapist is called to the ED for a 1-year-old with difficulty
breathing. Severe suprasternal, subcostal and substernal retraction are ob-
served. The child has a harsh, barking cough. Stridor is present. The therapist
should anticipate treatment for
Choose only ONE best answer.
a. Cystic Fibrosis
b. Pneumonia
c. Croup
,d. Asthma ANS Croup
Explain ANS The patient has some degree of upper airway obstruction caused by
some viral illness. The barky cough is a classic finding for patients experiencing
croup.
3. The polysomnography sleep laboratory is full scheduled for several weeks.
The physician wants to know if there is another option to determine if a patient
has sleep apnea. What should be recommended?
a. Overnight pulse oximetry
b. Nasal air flow monitoring
c. Holter monitoring for 48 hours
d. Chest-wall and abdominal-wall impedance comparison ANS Overnight
pulse oximetry
Explain ANS Overnight pulse oximetry can be used to screen patients with suspecte
obstructive sleep apnea. The patient's oxygen saturation is found to decrease during
apnea episodes.
,4. A respiratory therapist is assessing a 168-cm (5-ft 6-in), 73-kg (161-lb), a
41-year-old female who was admitted 12 hours ago for an aspirin overdose.
The following information is obtained as the patient breathes air ANS
HR 89/min
RR 15/min
BP 110/70 mm Hg
Sp02 86%
A respiratory therapist should do first.
a. Initiate oxygen at 4L/min by cannula
b. Record the results in the medical record
c. Obtain an arterial blood gas sample
d. Validate the Sp02 reading at a different site ANS Validate the Sp02 reading
at a different site
Explain ANS The saturation may not be accurate and should be measured at a
different site.
5. A 47-year-old male with a BMI of 50 kg/m is undergoing a sleep study with
titration of CPAP. The patient's baseline AHI is 59. At a CPAP level of 7 cm H20,
the AHI is 9. A respiratory therapist should recommend
a. Maintain the current level of CPAP
b. Decreasing the CPAP
c. Increasing the CPAP
d. Changing to bilevel PAP ANS Increasing the CPAP
Explain ANS The goal of CPAP intervention is to completely eliminate apnea and
hypop- nea episodes, standard protocol is to incrementally increase the CPAP
level until this occurs.
6. An arterial puncture has been performed to obtain blood for analysis of 02,
C02, and pH. What is the best way to manage the blood sample?
3 B/ B262
, a. Warm the sample to keep it at body temperature
b. Place it into a mix of ice and water
c. Let the blood naturally cool to room temperature
d. Shake the sample to hemolyze the blood ANS Place it into a mix of ice and
water
4 B/ B262
WITH RATIONALES|| 2025|26| LATEST UPDATE FOR PASS.
1. An infant with pneumonia is placed on CPAP with the initial level is 6 cm H20.
After the patient is placed on the system, the respiratory therapist notices that
the pressure falls to 2 cm H20 with each inspiration. What should be done to
correct the problem?
a. Tell the patient to relax and breath more slowly
b. Give the patient diazepam (Valium)
c. Increase the CPAP level to 8 cm H20
d. Increase the flow through the system ANS Increase the flow through the syste
Explain ANS Decreasing pressure with inspiration indicates inadequate gas flow. In-
creasing the flow should meet the patient's inspiratory flow needs and stabilize the
CPAP pressure.
2. A respiratory therapist is called to the ED for a 1-year-old with difficulty
breathing. Severe suprasternal, subcostal and substernal retraction are ob-
served. The child has a harsh, barking cough. Stridor is present. The therapist
should anticipate treatment for
Choose only ONE best answer.
a. Cystic Fibrosis
b. Pneumonia
c. Croup
,d. Asthma ANS Croup
Explain ANS The patient has some degree of upper airway obstruction caused by
some viral illness. The barky cough is a classic finding for patients experiencing
croup.
3. The polysomnography sleep laboratory is full scheduled for several weeks.
The physician wants to know if there is another option to determine if a patient
has sleep apnea. What should be recommended?
a. Overnight pulse oximetry
b. Nasal air flow monitoring
c. Holter monitoring for 48 hours
d. Chest-wall and abdominal-wall impedance comparison ANS Overnight
pulse oximetry
Explain ANS Overnight pulse oximetry can be used to screen patients with suspecte
obstructive sleep apnea. The patient's oxygen saturation is found to decrease during
apnea episodes.
,4. A respiratory therapist is assessing a 168-cm (5-ft 6-in), 73-kg (161-lb), a
41-year-old female who was admitted 12 hours ago for an aspirin overdose.
The following information is obtained as the patient breathes air ANS
HR 89/min
RR 15/min
BP 110/70 mm Hg
Sp02 86%
A respiratory therapist should do first.
a. Initiate oxygen at 4L/min by cannula
b. Record the results in the medical record
c. Obtain an arterial blood gas sample
d. Validate the Sp02 reading at a different site ANS Validate the Sp02 reading
at a different site
Explain ANS The saturation may not be accurate and should be measured at a
different site.
5. A 47-year-old male with a BMI of 50 kg/m is undergoing a sleep study with
titration of CPAP. The patient's baseline AHI is 59. At a CPAP level of 7 cm H20,
the AHI is 9. A respiratory therapist should recommend
a. Maintain the current level of CPAP
b. Decreasing the CPAP
c. Increasing the CPAP
d. Changing to bilevel PAP ANS Increasing the CPAP
Explain ANS The goal of CPAP intervention is to completely eliminate apnea and
hypop- nea episodes, standard protocol is to incrementally increase the CPAP
level until this occurs.
6. An arterial puncture has been performed to obtain blood for analysis of 02,
C02, and pH. What is the best way to manage the blood sample?
3 B/ B262
, a. Warm the sample to keep it at body temperature
b. Place it into a mix of ice and water
c. Let the blood naturally cool to room temperature
d. Shake the sample to hemolyze the blood ANS Place it into a mix of ice and
water
4 B/ B262
