AIIMS BBSR SNO - 2019
Applied Physiology
Easy
Which of the following is NOT true about sleep?
Appeared in: AIIMS BBSR SNO - 2019
Explanation
- The statement that dreams occur during Non-REM sleep is the most inaccurate choice.
- While some minor, less memorable mental activity can occur during NREM sleep, vivid, elaborate, and story-like dreaming is a defining characteristic of the REM sleep stage.
- REM sleep is associated with high brain activity, rapid eye movements, and muscle atonia, creating the ideal state for complex dreams.
- Therefore, attributing dreaming primarily to Non-REM sleep is a false statement.
Why Other Options Were Wrong
- Option A: This statement is true. The architecture of sleep is fundamentally divided into two distinct phases: Non-Rapid Eye Movement (NREM) sleep and Rapid Eye Movement (REM) sleep, which cycle throughout the night.
- Option B: This statement is true. The suprachiasmatic nucleus (SCN), located in the hypothalamus, is the primary biological clock that governs the body's circadian rhythms, including the sleep-wake cycle.
- Option C: This statement is true. The deepest stage of NREM sleep (N3, formerly stages 3 and 4) is when the pituitary gland releases the largest amount of growth hormone, which is essential for cellular repair and growth.
Related Visual
Clinical Relevance
- Nursing practice connection: This is primarily an exam-oriented knowledge point with limited direct bedside application, so retain Physiology of Sleep Stages (REM vs. NREM) as background academic context rather than a clinical decision trigger.
- Nurses must understand sleep architecture to promote patient recovery. Uninterrupted sleep, especially deep NREM sleep, is vital for physical healing and growth hormone release, particularly in post-surgical or pediatric patients.
- Many hospital routines (e.g., vital sign checks, medication administration) can disrupt sleep cycles. A nurse's awareness can lead to clustering care activities to allow for longer periods of rest.
- What if? If a patient is taking a medication known to suppress REM sleep (e.g., certain antidepressants or benzodiazepines), the nurse should be vigilant for side effects like impaired memory consolidation, mood changes, or increased daytime fatigue, and educate the patient accordingly.
How to Approach the Question
- First, identify that this is a negatively framed question asking for the 'NOT true' statement. This means three of the options are correct facts, and one is false.
- Read each option carefully and evaluate its scientific accuracy based on your knowledge of sleep physiology.
- Option A: Recall the basic structure of sleep. Is it divided into REM and NREM? Yes, this is fundamental.
- Option B: Think about the brain's control of sleep. Is the SCN the 'master clock'? Yes, this is correct.
- Option C: Consider the hormonal functions during sleep. When is growth hormone released? During deep sleep (NREM 3/4). This is correct.
- Option D: Evaluate the statement about dreaming. Is dreaming a feature of NREM sleep? While minor mental activity can occur, vivid dreaming is the hallmark of REM sleep. This statement is therefore the most inaccurate.
Concept Tested & Keywords
- Concept Tested: Physiology of Sleep Stages (REM vs. NREM)
- Stem keywords: sleep, REM, non-REM
- Lead-in keywords: NOT true
- Negative lead-in flag: The question asks for the statement that is NOT true.
Question ID
QtfEaszZikwhVOROPjAzN-
Reference Book
E6 Nursing Fundamentals Potter Perry 12e Part 5 p. 109-111
E6 Nursing Fundamentals Taylor p. 212-214
E6 Robert Boland, Marcia L. Verduin - Kaplan and Sadock's Comprehensive Text of Psychiatry-Wolters Kluwer Health (2024) (pp 1-16525 of 16525) p. 773-775
Practise the full AIIMS BBSR SNO - 2019
Attempt every question from this paper in a timed mock, then review the full solution for each one.
More Nervous System Questions
- The junction at which an impulse travels from one neuron to another is called:
- One function of parasympathetic nervous system is:
- What is the normal Intracranial pressure?
- Lumbar puncture for adults is done at:
- In healthy adults, the normal plantar flexion causes a:
- Which are the main functions of the hypoglossal nerve?
- Which is mainly responsible for fight (or) flight reactions?
- Nervous tissue is made of \ \ \ \ that receive and conduct impulses
- Which cortical area is responsible for the formulation of speech?
- Which part of the brain is affected in spatial disorientation?
More AIIMS BBSR SNO - 2019 Questions
- Carpal tunnel syndrome is caused by the compression of?
- Amoebiasis is caused by?
- \ \ \ \ \ \ is a family therapy approach that focuses on both the biological and the psychosocial components of a problem?
- Which of the following is NOT a physical assessment finding in Parkinson's disease?
- The neonatal period is defined as?
- Individuals who do NOT make decisions until they are aware of all the facts pertaining to a certain situation are called?
- The pH of arterial plasma in healthy individuals is?
- A client with C4 spinal cord injury is at greatest risk for?
- Which of the following is NOT a feature of a healthy mouth?
- In HIV, the virus cannot be transmitted by?