A community health nurse offers blood pressure checks to all adults attending a local health fair. This activity is best described as which type of screening?

1. A

   Diagnostic testing

2. B

   Prospective screening

3. C

   Case detection (prescriptive screening)

4. D

   Multiphasic screening

Appeared in: NORCET 1 - 2020

Explanation

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• Case detection, also known as prescriptive screening, is defined as the presumptive identification of unrecognized disease in individuals.
• The key purpose is that the screening is done for the individual's own health benefit.
• In this scenario, offering blood pressure checks at a health fair aims to identify adults with undiagnosed hypertension so they can receive treatment, which perfectly aligns with the definition of case detection.
• The initiative comes from the healthcare provider (the nurse), not the patient, which is a characteristic of screening.

Why Other Options Were Wrong

• Option A: Diagnostic testing is performed on individuals who already have signs and symptoms of a disease or have had a positive screening test. Its purpose is to establish a definitive diagnosis, not to screen a general, apparently healthy population.
• Option B: Prospective screening is conducted for the benefit of the community or others, not primarily the individual. It focuses on controlling the spread of communicable diseases.
• Option D: Multiphasic screening involves administering two or more screening tests simultaneously to the same person. The scenario describes only a single test: blood pressure checks.

Related Visual

• Visual 1: Flowchart: A flowchart that starts with 'Is the person apparently healthy?' and branches down to differentiate between screening, case-finding, and diagnostic testing based on the purpose (individual vs. community benefit) and number of tests (single vs. multiple).

Clinical Relevance

• Nursing practice connection: Knowing Types of Screening in Community Health Nursing helps nurses interpret findings accurately and avoid errors in routine assessment, medication administration, and patient teaching.
• Screening is a fundamental component of primary prevention in community health nursing. Identifying conditions like hypertension early can significantly reduce long-term morbidity and mortality from stroke, heart disease, and kidney failure.
• A critical nursing responsibility after screening is ensuring a system for referral and follow-up. A positive screening result is not a diagnosis; the nurse must educate the individual on the importance of seeing a healthcare provider for confirmation and management.
• What if the scenario involved screening school children for scoliosis? This would still be an example of case detection (prescriptive screening), as the primary goal is to identify the condition for the child's own benefit, allowing for early intervention.

How to Approach the Question

• First, analyze the scenario's key elements: Who is being tested? (Apparently healthy adults). What is being done? (A single test - BP check). Where is it happening? (A community health fair). Why is it being done? (To find unrecognized disease).
• Next, recall the definitions of the different types of screening and testing.
• Evaluate the purpose of the screening. Is it for the individual's benefit or the community's? In this case, identifying high blood pressure benefits the individual directly. This points away from 'prospective screening'.
• Consider the number of tests. The scenario mentions only 'blood pressure checks' (a single test), which rules out 'multiphasic screening'.
• Differentiate between screening and diagnosis. The activity is a rapid test on a healthy-appearing population, not a full workup for a symptomatic patient. This rules out 'diagnostic testing'.
• By elimination and direct matching, conclude that 'case detection (prescriptive screening)' is the best fit, as it involves screening for an unrecognized disease for the individual's own benefit.

Concept Tested & Keywords

• Concept Tested: Types of Screening in Community Health Nursing
• Stem keywords: community health nurse, blood pressure checks, health fair, screening
• Lead-in keywords: best described as
• Clinical cues: The care setting changes urgency, monitoring level, and the expected nursing action.
• Negative lead-in flag: false

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Q40k1vBtq0MYzOzPWKamfu

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