MNS 2024
Psychology
Easy

Amnesia of events occurring prior to the episode which precipitated the event is termed as?

Appeared in: MNS 2024

Explanation

  • Retrograde amnesia is defined as the loss of memory for events and information that were acquired before the onset of the condition or injury.
  • The question specifically asks for the term describing memory loss of events 'prior to the episode,' which directly matches the definition of retrograde amnesia.
  • This type of amnesia is often associated with head injuries, electroconvulsive therapy, or certain neurological conditions.
  • The key differentiator is the timing of the memory loss relative to the causative event; 'retro' means backward-looking.

Why Other Options Were Wrong

  • Option A: Anterograde amnesia is the inability to form new memories after the event that caused the amnesia, not the loss of memories from before the event.
  • Option B: Alzheimer's dementia is a specific, progressive neurodegenerative disease. While it causes memory loss, it is not the specific term for event-related amnesia. The memory loss in Alzheimer's is gradual and affects both new and old memories over time.
  • Option D: Aphasia is a disorder of language and communication, affecting the ability to speak, write, and understand language. It is not a memory disorder.

Related Visual

Visual explanation — Related Visual
Clinical Relevance
  • Nursing practice connection: This is primarily an exam-oriented knowledge point with limited direct bedside application, so retain Types of Amnesia as background academic context rather than a clinical decision trigger.
  • Nurses must accurately document the nature of a patient's memory loss, distinguishing between retrograde and anterograde amnesia, as it provides crucial information about the location and extent of brain injury.
  • Understanding the type of amnesia is vital for patient safety. A patient with anterograde amnesia will not remember instructions, requiring repeated education and environmental cues (e.g., signs, alarms).
  • What if? If a patient had both retrograde and anterograde amnesia after a traumatic brain injury, the nursing care plan would need to address both the loss of personal identity (from retrograde amnesia) and the inability to learn new information for daily care (from anterograde amnesia), requiring comprehensive support and safety measures.
How to Approach the Question
  • First, identify the key phrase in the question: 'amnesia of events occurring prior to the episode'.
  • Break down the term 'prior to'. This means 'before'.
  • Analyze the prefixes of the options. 'Retro-' means backward, and 'Antero-' means forward.
  • Connect 'prior to' (before) with 'retro-' (backward). This points to Retrograde amnesia.
  • Evaluate the other options to confirm they are incorrect. Anterograde amnesia relates to events after the episode. Alzheimer's is a disease, not a specific type of event-related amnesia. Aphasia is a language disorder.
  • Conclude that Retrograde amnesia is the only term that fits the description.
Concept Tested & Keywords
  • Concept Tested: Types of Amnesia
  • Stem keywords: Amnesia, prior to the episode, precipitated the event
  • Lead-in keywords: termed as
  • Negative lead-in flag: false

Question ID

Qt7vqejiHWvMwxr9WLP64

Reference Book

E6 Robert Boland, Marcia L. Verduin - Kaplan and Sadock's Comprehensive Text of Psychiatry-Wolters Kluwer Health (2024) (pp 1-16525 of 16525) p. 2496-2498

E6 Kaplan Sadock's Synopsis of Psychiatry-2022 (pp 1-3768 of 3768) pp. 3219-3221, 798-800

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