A nurse is teaching the staff about the sleep cycle. Which period lasts 10 to 30 minutes?

Pre-sleep.

NREM Stage 2.

REM.

NREM Stage 1.

Answer and Explanation

The Correct Answer is B

Choice A reason: Pre-sleep, the transition to sleep, is not a distinct sleep cycle stage and varies widely, not consistently lasting 10-30 minutes. NREM Stage 2 has a defined duration. Misidentifying pre-sleep risks confusing staff, potentially leading to inaccurate sleep assessments and interventions in patients with sleep disorders.

Choice B reason: NREM Stage 2, lasting 10-30 minutes per cycle, involves light sleep with sleep spindles and K-complexes, consolidating memory and transitioning to deeper sleep. Accurate teaching ensures staff recognize this stage’s role in restorative sleep, guiding monitoring and interventions for patients with disrupted sleep patterns in clinical settings.

Choice C reason: REM sleep, lasting 10-20 minutes initially but up to 60 minutes later in the night, does not consistently fall within 10-30 minutes. NREM Stage 2 is more accurate. Misidentifying REM risks staff misunderstanding sleep cycles, potentially affecting sleep assessments and management in patients with insomnia or neurological conditions.

Choice D reason: NREM Stage 1, lasting 5-10 minutes, is shorter than 10-30 minutes, involving light sleep and easy arousability. NREM Stage 2 better fits the duration. Misidentifying Stage 1 confuses sleep cycle education, risking inaccurate monitoring and interventions for sleep quality, critical for patient recovery and health outcomes.

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Correct Answer is D

Explanation

Choice A reason: The ego defense model, rooted in psychoanalytic theory, describes psychological mechanisms (e.g., denial) to cope with stress, not a normal line of defense for health. It focuses on mental protection, not holistic wellness, making it unrelated to the nursing theory described with a line of defense.

Choice B reason: The immunity model is not a recognized nursing theory. While immunity relates to biological defense, it does not encompass a “normal line of defense” for person, family, or community health. This choice is incorrect, as it lacks the holistic framework described in the question.

Choice C reason: Pender’s Health Promotion Model focuses on behaviors to enhance health but does not use the concept of a normal line of defense. It emphasizes individual motivation and barriers, not systemic protection against stressors, making it an incorrect match for the described nursing theory.

Choice D reason: The Neuman Systems Model views individuals, families, or communities as systems with a normal line of defense, a protective barrier against stressors. This holistic theory emphasizes maintaining stability through primary, secondary, and tertiary prevention, aligning with the described concept, making it the correct theory.

A. During NREM sleep, biological functions increase. B. REM sleep decreases cortical activity. C. Restful sleep preserves cardiac function. D. NREM sleep contributes to body tissue restoration. E. Sleep contributes to cognitive restoration.

Correct Answer is ["C","D","E"]

Explanation

Choice A reason: During NREM sleep, biological functions like heart rate and metabolism decrease, not increase, to promote restoration. Increased functions occur in REM sleep or wakefulness. This statement is incorrect, as it misrepresents NREM sleep’s physiological role, making it an inappropriate teaching point.

Choice B reason: REM sleep increases cortical activity, supporting dreaming and memory processing, not decreasing it. This statement is inaccurate, as REM is characterized by high brain activity similar to wakefulness. It does not align with sleep’s benefits, making it incorrect for the teaching session.

Choice C reason: Restful sleep preserves cardiac function by reducing heart rate, blood pressure, and stress hormones, lowering cardiovascular strain. Adequate sleep prevents arrhythmias and hypertension, making this a correct teaching point to highlight sleep’s protective role in heart health for ICU patients.

Choice D reason: NREM sleep, especially deep stages, promotes body tissue restoration by facilitating protein synthesis and growth hormone release, aiding tissue repair. This is a key benefit, particularly for ICU patients recovering from illness, making it a correct point for the nurse’s teaching session.

Choice E reason: Sleep, particularly REM and deep NREM, supports cognitive restoration by consolidating memories and clearing brain metabolites. This enhances alertness and decision-making, critical for ICU patients’ recovery. This is a correct teaching point, emphasizing sleep’s role in mental clarity and function.

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A nurse is teaching the staff about the sleep cycle. Which period lasts 10 to 30 minutes?

Nursing Test Bank

Naxlex Comprehensive Predictor Exams

A nurse is teaching the staff about a nursing theory that views a person, family, or community developing a normal line of defense. Which theory is the nurse describing?

Correct Answer is D

Explanation

The nurse is caring for a patient in the intensive care unit who is having trouble sleeping. The nurse explains the purpose of sleep and its benefits. Which information will the nurse include in the teaching session? (Select all that apply)

Correct Answer is ["C","D","E"]

Explanation

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