RPSGT Exam-Style Sleep Science and Safety Scenarios Practice
Questions with Correct Answers (Grade A+)
Question 1: Sleep
Answer: A reversible state of reduced responsiveness to the environment
Question 2: Circadian Rhythm
Answer: The body's internal 24-hour clock regulating sleep and wake cycles
Question 3: Homeostatic Sleep Drive
Answer: The pressure to sleep that increases the longer you stay awake
Question 4: REM Sleep
Answer: Stage of sleep with rapid eye movements, dreaming, and muscle atonia
Question 5: NREM Sleep
Answer: Non-REM sleep consisting of stages N1, N2, and N3
Question 6: Sleep Latency
Answer: Time it takes to fall asleep after lights out
Question 7: Sleep Efficiency
Answer: (Total Sleep Time ÷ Time in Bed) × 100
Question 8: N1 Sleep
Answer: Lightest sleep; slow rolling eye movements; easily awakened
Question 9: N2 Sleep
Answer: Characterized by sleep spindles and K-complexes
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, Question 10: N3 Sleep
Answer: Deep sleep; delta waves; restorative sleep
Question 11: REM Sleep Characteristics
Answer: Low-amplitude mixed-frequency EEG, rapid eye movements, muscle paralysis
Question 12: EEG (Electroencephalogram)
Answer: Measures brain electrical activity
Question 13: EOG (Electrooculogram)
Answer: Measures eye movements
Question 14: EMG (Electromyogram)
Answer: Measures muscle tone
Question 15: Sleep Spindles
Answer: Brief bursts of 12-14 Hz activity seen in N2 sleep
Question 16: K-Complex
Answer: Single large wave in N2 sleep, often triggered by external stimuli
Question 17: Apnea
Answer: ≥90% reduction in airflow lasting ≥10 seconds
Question 18: Hypopnea
Answer: ≥30% airflow reduction with ≥3% oxygen desaturation or arousal
Question 19: Obstructive Apnea
Answer: Airflow stops despite continued respiratory effort
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Questions with Correct Answers (Grade A+)
Question 1: Sleep
Answer: A reversible state of reduced responsiveness to the environment
Question 2: Circadian Rhythm
Answer: The body's internal 24-hour clock regulating sleep and wake cycles
Question 3: Homeostatic Sleep Drive
Answer: The pressure to sleep that increases the longer you stay awake
Question 4: REM Sleep
Answer: Stage of sleep with rapid eye movements, dreaming, and muscle atonia
Question 5: NREM Sleep
Answer: Non-REM sleep consisting of stages N1, N2, and N3
Question 6: Sleep Latency
Answer: Time it takes to fall asleep after lights out
Question 7: Sleep Efficiency
Answer: (Total Sleep Time ÷ Time in Bed) × 100
Question 8: N1 Sleep
Answer: Lightest sleep; slow rolling eye movements; easily awakened
Question 9: N2 Sleep
Answer: Characterized by sleep spindles and K-complexes
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, Question 10: N3 Sleep
Answer: Deep sleep; delta waves; restorative sleep
Question 11: REM Sleep Characteristics
Answer: Low-amplitude mixed-frequency EEG, rapid eye movements, muscle paralysis
Question 12: EEG (Electroencephalogram)
Answer: Measures brain electrical activity
Question 13: EOG (Electrooculogram)
Answer: Measures eye movements
Question 14: EMG (Electromyogram)
Answer: Measures muscle tone
Question 15: Sleep Spindles
Answer: Brief bursts of 12-14 Hz activity seen in N2 sleep
Question 16: K-Complex
Answer: Single large wave in N2 sleep, often triggered by external stimuli
Question 17: Apnea
Answer: ≥90% reduction in airflow lasting ≥10 seconds
Question 18: Hypopnea
Answer: ≥30% airflow reduction with ≥3% oxygen desaturation or arousal
Question 19: Obstructive Apnea
Answer: Airflow stops despite continued respiratory effort
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