A CHO/Nurse is caring for a Swine Flu patient; which is the most effective drug for Swine Flu?

Appeared in: UP CHO - 2018

Explanation

Oseltamivir is an antiviral medication specifically designed to treat Influenza A and B viruses, which includes the H1N1 strain known as Swine Flu.
It works as a neuraminidase inhibitor, blocking a key enzyme the virus needs to be released from infected cells, thereby stopping the spread of the infection in the body.
It is most effective when started within 48 hours of symptom onset and is considered the drug of choice for treating influenza, especially in patients with complications or those requiring hospitalization.

Option A: Acyclovir is an antiviral used for herpes simplex (HSV) and varicella-zoster (VZV) viruses, not influenza viruses.
Option B: This drug is specifically used to treat chronic Hepatitis B virus (HBV) infections and has no activity against the influenza virus.
Option C: Cidofovir is a potent antiviral used primarily for Cytomegalovirus (CMV) infections, especially CMV retinitis in immunocompromised patients.

Clinical Relevance

Nursing practice connection: Use the key finding related to Pharmacotherapy for Influenza A (H1N1/Swine Flu) to guide bedside assessment, documentation, and the next nursing action.
Nurses must educate patients to start Oseltamivir as early as possible (ideally within 48 hours of symptoms) to maximize its effectiveness in reducing illness duration and severity.
Monitoring for potential side effects like nausea and vomiting is a key nursing role. Administering the medication with food can help minimize these gastrointestinal issues.
Patient adherence to the full 5-day course of treatment is crucial to prevent the development of antiviral resistance.

How to Approach the Question

First, identify the specific disease mentioned in the question: 'Swine Flu,' which is another name for the Influenza A H1N1 virus.
Next, recall the major classes of antiviral drugs and their primary targets. The question asks for the 'most effective drug,' indicating a need for specific knowledge.
Evaluate each option based on its known indication: Acyclovir (Herpes viruses), Adefovir (Hepatitis B), Cidofovir (Cytomegalovirus), and Oseltamivir (Influenza viruses).
Match the drug to the disease. Oseltamivir is the only drug listed that is indicated for treating influenza viruses.
Therefore, select Oseltamivir as the correct and most effective treatment for Swine Flu.

Concept Tested & Keywords

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E6 Nelson Textbook of Pediatrics(2024) — Volume 1 p. 1961-1963

E6 Medicine Harrison 22e Part 1 pp. 1578-1580, 1529-1531

Practise the full UP CHO - 2018

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