Which assessment tool is commonly used to document family genetic history?

RRB Nsg. Superintendent -29 April-2025 (shift-2nd)

Pathology & Genetics

Easy

Appeared in: RRB Nsg. Superintendent -29 April-2025 (shift-2nd)

Explanation

A pedigree chart is the standard graphical tool for documenting a family's medical and genetic history.
It uses standardized symbols to represent individuals, their relationships, and their health status across multiple generations.
This visual representation helps clinicians identify patterns of inheritance (e.g., dominant, recessive, X-linked) and assess genetic risk.

Option A: Medical record review is a process of data collection for an individual, not a specific tool designed to visualize and analyze inheritance patterns across multiple generations of a family.
Option C: A developmental milestone chart tracks a child's functional and cognitive development (e.g., walking, talking, social skills) against age-based norms. It has no role in documenting genetic inheritance.
Option D: A growth percentile chart is used to monitor a child's physical growth (height, weight, head circumference) by comparing them to a standardized population. It does not track genetic traits or diseases through a family.

Visual 1: Diagram: A sample pedigree chart showing three generations, with standard symbols for male, female, affected individuals, and relationships. Caption: This visual helps learners recognize the structure and symbols of a pedigree chart, the primary tool for tracking genetic inheritance.

Clinical Relevance

Nursing practice connection: Use the key finding related to Assessment tools for genetic history to guide bedside assessment, documentation, and the next nursing action.
Nurses often collect family history during patient intake. Knowing how to read or construct a basic pedigree is crucial for identifying patients who may need a referral for genetic counseling.
Accurate family history is vital for preconception counseling, prenatal screening, and assessing risk for hereditary conditions like certain cancers (e.g., BRCA-related breast cancer) or Huntington's disease.
What if? If a patient reports a family history of a specific cancer but is unsure of the details, the nurse's next step is not to immediately draw a pedigree, but to ask clarifying questions (e.g., 'Who had the cancer?', 'What type was it?', 'At what age were they diagnosed?') to gather the necessary data for a future genetic risk assessment.

How to Approach the Question

First, identify the core concept in the question: documenting 'family genetic history'.
Next, analyze each option to determine its primary purpose.
Options C ('Developmental milestone chart') and D ('Growth percentile chart') are used for monitoring an individual child's development and growth, not family genetics.
Option A ('Medical record review') is a general data collection method, not a specialized tool for mapping genetic lineage.
Option B ('Pedigree chart') is specifically designed to graphically represent genetic information and inheritance patterns within a family, making it the most appropriate answer.

Concept Tested & Keywords

QJirXLc3xF99hg0ai3rN-Y