DOTS is used in the treatment of?

ISRO- 2016

Medical & Surgical Nursing

Easy

Appeared in: ISRO- 2016

Explanation

DOTS stands for Directly Observed Treatment, Short-course, which is the WHO-recommended strategy for managing Tuberculosis (TB).
The core principle is that a healthcare worker or trained individual directly observes the patient swallowing their medication to ensure full compliance.
This strategy is essential for TB because the treatment duration is long (6+ months), and non-adherence can lead to treatment failure and the development of multidrug-resistant TB (MDR-TB).
The 'Short-course' component refers to a standardized and highly effective combination drug therapy lasting about 6-9 months, which is significantly shorter than older TB treatment regimens.

Option A: Typhoid fever is a bacterial infection caused by Salmonella Typhi. Its treatment involves a course of antibiotics (e.g., azithromycin, ceftriaxone) that typically lasts 7-14 days, which is too short to necessitate a directly observed therapy program.
Option B: Cholera is an acute diarrheal illness caused by Vibrio cholerae. The cornerstone of treatment is rapid rehydration with Oral Rehydration Solution (ORS). While antibiotics are used in severe cases, the primary management is not a long-term drug regimen requiring direct observation.
Option C: Dengue is a viral infection transmitted by mosquitoes. There is no specific antiviral medication for dengue. Treatment is purely supportive, focusing on managing fever, pain, and hydration, and monitoring for complications like Dengue Hemorrhagic Fever.

Clinical Relevance

Nursing practice connection: Knowing DOTS (Directly Observed Treatment, Short-course) strategy helps nurses interpret findings accurately and avoid errors in routine assessment, medication administration, and patient teaching.
Nurses are central to the success of the DOTS program. They are responsible for patient education, administering medications, monitoring for and managing adverse drug reactions (e.g., hepatotoxicity from Isoniazid, optic neuritis from Ethambutol), and providing psychosocial support to ensure treatment completion.
A key nursing intervention is teaching patients to recognize and report side effects. For example, orange-colored urine is a harmless side effect of Rifampicin, but yellowing of the skin or eyes (jaundice) is a danger sign of liver damage and requires immediate medical attention.
What if? If a patient on DOTS develops jaundice and vomiting, the nurse must advise the patient to stop taking the anti-TB drugs immediately and seek urgent medical evaluation, including liver function tests, as this indicates potential drug-induced hepatitis.

How to Approach the Question

First, identify the core term in the question: 'DOTS'.
Recall or deduce the full form of the acronym: Directly Observed Treatment, Short-course.
Analyze the meaning of the acronym. 'Directly Observed' implies a need for supervision during medication intake. This is usually required for diseases with long treatment durations where patient adherence is a major concern.
Evaluate the options based on this analysis:
Typhoid, Cholera, and Dengue are acute illnesses with either short treatment courses or supportive care, making a long-term observed therapy model unnecessary.
Tuberculosis (TB) requires a multi-drug regimen for at least six months. Poor adherence is a primary cause of treatment failure and the rise of drug-resistant TB.

Concept Tested & Keywords

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E6 Parks TextBook of Preventive & Social Medicine part 1 — Subpart C (pp 404-604 of 604) p. 106-108

E6 Parks TextBook of Preventive & Social Medicine part 1 — Subpart B (pp 202-403 of 604) p. 28-30