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Best Practices & Methodologies Flashcards

7 cards from real RPSGT practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.

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  1. According to the AASM recommended (1B) hypopnea scoring rule, what percentage reduction in airflow signal amplitude is required?

    Answer: 30%

    The AASM recommended rule scores a hypopnea when the airflow signal drops ≥30% from baseline, associated with ≥3% oxygen desaturation or an arousal.

  2. A central apnea is characterized by cessation of airflow for ≥10 seconds with what respiratory pattern?

    Answer: Absent respiratory effort throughout the event

    Central apneas show absent respiratory effort (both thoracic and abdominal excursion cease) throughout the event, distinguishing them from obstructive apneas.

  3. During CPAP titration, a patient continues to have obstructive apneas at 8 cmH₂O. What is the typical next pressure adjustment step?

    Answer: Increase pressure by 1 cmH₂O

    CPAP titration protocols typically increase pressure in 1 cmH₂O increments when obstructive apneas persist, allowing adequate time to assess response.

  4. What criteria must be met on a diagnostic split-night study before transitioning to PAP titration according to AASM protocols?

    Answer: AHI ≥15 after at least 120 minutes with ≥90 minutes of PAP titration remaining

    AASM criteria for split-night studies require AHI ≥40 (or 20–40 with extenuating events) after ≥2 hours diagnostic, ensuring ≥3 hours remain for adequate PAP titration.

  5. A respiratory effort-related arousal (RERA) is characterized by which of the following?

    Answer: A sequence of breaths lasting ≥10 seconds with flattened inspiratory airflow leading to arousal

    A RERA is a sequence of breaths ≥10 seconds showing flattened inspiratory airflow or increasing respiratory effort culminating in an arousal, not meeting apnea or hypopnea criteria.

  6. During CPAP titration, persistent flow limitation without discrete apneas or hypopneas is best addressed by:

    Answer: Increasing pressure in 1 cmH₂O increments

    Flow limitation (flattened inspiratory flow curve) indicates partial upper airway obstruction; increasing CPAP pressure in 1 cmH₂O steps reduces airway resistance.

  7. What distinguishes a mixed apnea from other apnea types?

    Answer: It begins with absent respiratory effort and ends with resumed but obstructed effort

    A mixed apnea begins with the absent effort of a central apnea and transitions to obstructive respiratory effort before airflow resumes.

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  1. brpt.org — Test delivery, eligibility, fees, exam format, passing score, retake fee, retake policy, score release, test dates, time limit · verified Oct 2026
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