UP CHO - 2018
Microbiology
Easy

The Schick Test is used to detect which disease?

Appeared in: UP CHO - 2018

Explanation

  • The Schick test is an intradermal skin test specifically designed to determine a person's susceptibility or immunity to Diphtheria.
  • It involves injecting a small, controlled amount of diphtheria toxin into the skin of the forearm.
  • A positive reaction, characterized by localized redness and swelling, indicates that the individual lacks sufficient antibodies to neutralize the toxin and is therefore susceptible to the disease.
  • Conversely, a negative reaction (no skin change) signifies that the person is immune to Diphtheria.

Why Other Options Were Wrong

  • Option A: The Schick test is not used for Tuberculosis (T.B.).
  • Option B: The Schick test is not used for Typhoid.
  • Option D: The Schick test is not used for Cholera.

Related Visual

Visual explanation — Related Visual
Clinical Relevance
  • Nursing practice connection: Knowing Diagnostic test for Diphtheria (Schick Test) helps nurses interpret findings accurately and avoid errors in routine assessment, medication administration, and patient teaching.
  • Understanding historical tests like the Schick test provides context for modern immunological assays and the principles of vaccination.
  • Although rarely used today, if a nurse were to encounter a positive Schick test result, they would immediately recognize the patient is susceptible to diphtheria and requires vaccination or a booster.
  • This knowledge is crucial for public health nurses involved in immunization programs and outbreak control, especially in regions where diphtheria may re-emerge.
How to Approach the Question
  • This is a factual recall question that requires matching a specific diagnostic test to its corresponding disease.
  • First, identify the key term in the question stem, which is 'Schick Test'.
  • Next, systematically review your knowledge of common diagnostic tests for major infectious diseases.
  • Evaluate each option: Is the Schick test for T.B.? No, that's the Mantoux test. Is it for Typhoid? No, that's the Widal test. Is it for Cholera? No, that's a stool culture.
  • By elimination and direct recall, you can correctly associate the Schick Test with Diphtheria.
Concept Tested & Keywords
  • Concept Tested: Diagnostic test for Diphtheria (Schick Test)
  • Stem keywords: Schick Test, detect, disease
  • Lead-in keywords: which disease
  • Negative lead-in flag: false

Question ID

QyuLyIAVSxMLAkW3Rrk-AQ

Reference Book

E6 Microbiology Applied AnjuDhir 3e Part 2 p. 106-108

E6 Pathology- ROBBINS & COTRAN PATHOLOGIC BASIS OF DISEASE 10TH Ed p. 378-380

E6 Parks TextBook of Preventive & Social Medicine part 1 — Subpart B (pp 202-403 of 604) p. 92-94

Practise the full UP CHO - 2018

Attempt every question from this paper in a timed mock, then review the full solution for each one.