SDS EXAM QUESTIONS WITH 100%
ACCURATE ANSWERS Latest UPDATE
2026 EXAM PREP
A patient presents to a sleep center for an overnight PSG. Throughout the night,
the patient qualifies for a split-night sleep study. A sleep disorders specialist
places on the patient a medium nasal gel mask delivering 5 cm H2O CPAP. While
titrating, the specialist increases the pressure to 10 cm H2O, which decreases
apneas and snores, and stabilizes oxygen levels. The specialist notices that the
patient's leak goes from 10 L/min to 26 L/min. Which of the following should the
specialist do next?
Continue to monitor the patient.
-A leak of 26 L/min is normal for 10 cm H2O CPAP; therefore, the specialist should
continue to monitor the patient.
The nasal pressure signal drops by greater than or equal to 50% of baseline for at
least 10 seconds, but has no associated arousal. According to AASM Guidelines,
to score a hypopnea, the associated desaturation must be at least
3%
-According to the AASM Guidelines, a 50% or greater drop of nasal pressure signal is
scored as a hypopnea if there is a greater than 3% desaturation or an arousal.
Following a PSG, a sleep disorders specialist repeats biocalibration maneuvers. It
is noted that the snore channel does not record a signal even when the patient
demonstrates an audible snore. The specialist should
, Document the finding
-This finding should be documented for the scoring specialist and interpreting physician
so both understand why the channel's signal is flat and may not be an accurate
representation of patient snoring.
A patient was referred for excessive daytime somnolence. After 4 hours of data
acquisition, a sleep disorders specialist notes a decrease in the patient's SpO2
during a REM period to a nadir of 85%. The specialist scrolls back to the first REM
period and notes the same desaturations and arousals. There are no apneas,
hypopneas, or snoring. Which of the following should the specialist do?
Administer oxygen by nasal O2 at 1 L/min.
-If there are no obstructive respiratory events observed, a low oxygen saturation level is
best treated with supplemental oxygen.
Between naps 2 and 3 of an MSLT, a sleep disorders specialist finds the patient
asleep in a lounge. The specialist should
Document the observance
-Events that represent deviation from standard conditions should be documented for
review by the interpreting clinician.
While preparing a patient for a routine PSG in a free-standing sleep laboratory, a
sleep disorders specialist notes that the patient's blood pressure is 190/100 mm
Hg. The patient also complains of a pounding headache. When the patient is
asked to smile, there is noticeable drooping on the left side of the face. Which of
the following should be done immediately?
Call 911 and administer oxygen
ACCURATE ANSWERS Latest UPDATE
2026 EXAM PREP
A patient presents to a sleep center for an overnight PSG. Throughout the night,
the patient qualifies for a split-night sleep study. A sleep disorders specialist
places on the patient a medium nasal gel mask delivering 5 cm H2O CPAP. While
titrating, the specialist increases the pressure to 10 cm H2O, which decreases
apneas and snores, and stabilizes oxygen levels. The specialist notices that the
patient's leak goes from 10 L/min to 26 L/min. Which of the following should the
specialist do next?
Continue to monitor the patient.
-A leak of 26 L/min is normal for 10 cm H2O CPAP; therefore, the specialist should
continue to monitor the patient.
The nasal pressure signal drops by greater than or equal to 50% of baseline for at
least 10 seconds, but has no associated arousal. According to AASM Guidelines,
to score a hypopnea, the associated desaturation must be at least
3%
-According to the AASM Guidelines, a 50% or greater drop of nasal pressure signal is
scored as a hypopnea if there is a greater than 3% desaturation or an arousal.
Following a PSG, a sleep disorders specialist repeats biocalibration maneuvers. It
is noted that the snore channel does not record a signal even when the patient
demonstrates an audible snore. The specialist should
, Document the finding
-This finding should be documented for the scoring specialist and interpreting physician
so both understand why the channel's signal is flat and may not be an accurate
representation of patient snoring.
A patient was referred for excessive daytime somnolence. After 4 hours of data
acquisition, a sleep disorders specialist notes a decrease in the patient's SpO2
during a REM period to a nadir of 85%. The specialist scrolls back to the first REM
period and notes the same desaturations and arousals. There are no apneas,
hypopneas, or snoring. Which of the following should the specialist do?
Administer oxygen by nasal O2 at 1 L/min.
-If there are no obstructive respiratory events observed, a low oxygen saturation level is
best treated with supplemental oxygen.
Between naps 2 and 3 of an MSLT, a sleep disorders specialist finds the patient
asleep in a lounge. The specialist should
Document the observance
-Events that represent deviation from standard conditions should be documented for
review by the interpreting clinician.
While preparing a patient for a routine PSG in a free-standing sleep laboratory, a
sleep disorders specialist notes that the patient's blood pressure is 190/100 mm
Hg. The patient also complains of a pounding headache. When the patient is
asked to smile, there is noticeable drooping on the left side of the face. Which of
the following should be done immediately?
Call 911 and administer oxygen
