B R P T · R E G I S T E R E D P O LY S O M N O G R A P H I C T E C H N O L O G I S T
RPSGT 2026 Practice Test
Supplemental O2 & Sleep
Scoring
Comprehensive Review with Questions, Answers & Rationales
Topics: O2 Titration · Sleep Staging · Scoring · MSLT · MWT · Medications · &
More
Edition 1 · August 2026
,Table of Contents
1. Instructions for Use 2
2. Supplemental O2 & PAP Titration 2
3. Sleep Staging & Scoring Rules 3
4. MSLT, MWT & Clinical Assessments 4
5. Medications & Sleep Disorders 5
6. Infant & Pediatric Scoring 6
RPSGT 2026 Practice Test · BRPT Page 1
,RPSGT 2026 PRACTICE TEST GUIDE O2 & PAP TITRATION
How to Use This Guide
Read each stem, choose your answer, then check the rationale directly below it. The correct option is marked, and each
wrong option is explained so you understand why it's wrong — not just that it is.
Supplemental O2 & PAP Titration
1 When is supplemental oxygen recommended during a sleep study?
A When SpO2 is less than 88% for 5 minutes or longer while the patient is awake
B When SpO2 is less than 85% for 10 minutes
C When SpO2 is less than 90% for 2 minutes
D When SpO2 is less than 80% for any duration
Why A is correct: Supplemental oxygen is recommended when SpO2 is less than 88% for 5 minutes or longer while the
patient is awake.
B — 85% for 10 minutes is not the standard criteria.
C — 90% for 2 minutes is not the standard criteria.
D — 80% for any duration is not the standard criteria.
2 Where should oxygen be connected on CPAP equipment?
A Connect through CPAP tubing using an adapter or T-connector
B Connect directly to the mask port
C Connect to the humidifier chamber
D Connect to the machine's air inlet
Why A is correct: Oxygen should be connected through CPAP tubing using an adapter or T-connector.
B — Direct mask connection is not standard.
C — Humidifier connection is not standard.
D — Air inlet connection is not standard.
, 3 What is the recommended starting rate for oxygen?
A 1 L/min
B 2 L/min
C 0.5 L/min
D 3 L/min
Why A is correct: The recommended starting rate for oxygen is 1 L/min.
B — 2 L/min is too high as a starting rate.
C — 0.5 L/min is too low.
D — 3 L/min is too high.
4 What is the recommended rate of oxygen increase and intervals?
A Increase 1 L/min with 15-minute intervals until SpO2 is within 88%-94%
B Increase 0.5 L/min with 10-minute intervals
C Increase 2 L/min with 20-minute intervals
D Increase 1 L/min with 5-minute intervals
Why A is correct: Oxygen should be increased by 1 L/min at 15-minute intervals until SpO2 is within 88%-94%.
B — 0.5 L/min increments are too small.
C — 2 L/min increments are too large.
D — 5-minute intervals are too short.
5 When should oxygen be lowered?
A When CPAP/Bi-PAP pressure is increased
B When SpO2 is above 95%
C When respiratory events decrease
D When the patient complains of discomfort
Why A is correct: Oxygen should be lowered when CPAP/Bi-PAP pressure is increased, as higher pressure often
improves oxygenation.
B — SpO2 above 95% may not require lowering.
C — Events decreasing is expected with therapy.
D — Discomfort is not the primary reason to lower O2.
RPSGT 2026 Practice Test
Supplemental O2 & Sleep
Scoring
Comprehensive Review with Questions, Answers & Rationales
Topics: O2 Titration · Sleep Staging · Scoring · MSLT · MWT · Medications · &
More
Edition 1 · August 2026
,Table of Contents
1. Instructions for Use 2
2. Supplemental O2 & PAP Titration 2
3. Sleep Staging & Scoring Rules 3
4. MSLT, MWT & Clinical Assessments 4
5. Medications & Sleep Disorders 5
6. Infant & Pediatric Scoring 6
RPSGT 2026 Practice Test · BRPT Page 1
,RPSGT 2026 PRACTICE TEST GUIDE O2 & PAP TITRATION
How to Use This Guide
Read each stem, choose your answer, then check the rationale directly below it. The correct option is marked, and each
wrong option is explained so you understand why it's wrong — not just that it is.
Supplemental O2 & PAP Titration
1 When is supplemental oxygen recommended during a sleep study?
A When SpO2 is less than 88% for 5 minutes or longer while the patient is awake
B When SpO2 is less than 85% for 10 minutes
C When SpO2 is less than 90% for 2 minutes
D When SpO2 is less than 80% for any duration
Why A is correct: Supplemental oxygen is recommended when SpO2 is less than 88% for 5 minutes or longer while the
patient is awake.
B — 85% for 10 minutes is not the standard criteria.
C — 90% for 2 minutes is not the standard criteria.
D — 80% for any duration is not the standard criteria.
2 Where should oxygen be connected on CPAP equipment?
A Connect through CPAP tubing using an adapter or T-connector
B Connect directly to the mask port
C Connect to the humidifier chamber
D Connect to the machine's air inlet
Why A is correct: Oxygen should be connected through CPAP tubing using an adapter or T-connector.
B — Direct mask connection is not standard.
C — Humidifier connection is not standard.
D — Air inlet connection is not standard.
, 3 What is the recommended starting rate for oxygen?
A 1 L/min
B 2 L/min
C 0.5 L/min
D 3 L/min
Why A is correct: The recommended starting rate for oxygen is 1 L/min.
B — 2 L/min is too high as a starting rate.
C — 0.5 L/min is too low.
D — 3 L/min is too high.
4 What is the recommended rate of oxygen increase and intervals?
A Increase 1 L/min with 15-minute intervals until SpO2 is within 88%-94%
B Increase 0.5 L/min with 10-minute intervals
C Increase 2 L/min with 20-minute intervals
D Increase 1 L/min with 5-minute intervals
Why A is correct: Oxygen should be increased by 1 L/min at 15-minute intervals until SpO2 is within 88%-94%.
B — 0.5 L/min increments are too small.
C — 2 L/min increments are too large.
D — 5-minute intervals are too short.
5 When should oxygen be lowered?
A When CPAP/Bi-PAP pressure is increased
B When SpO2 is above 95%
C When respiratory events decrease
D When the patient complains of discomfort
Why A is correct: Oxygen should be lowered when CPAP/Bi-PAP pressure is increased, as higher pressure often
improves oxygenation.
B — SpO2 above 95% may not require lowering.
C — Events decreasing is expected with therapy.
D — Discomfort is not the primary reason to lower O2.
