The type of hepatitis not transmitted by blood transfusion is:

IGNOU PB Bsc Entrance-2022

Medical & Surgical Nursing

Easy

Appeared in: IGNOU PB Bsc Entrance-2022

Explanation

Hepatitis A virus (HAV) is transmitted almost exclusively through the fecal-oral route.
This occurs when a person ingests food or water that has been contaminated with fecal matter from an infected individual.
While a brief period of viremia (virus in the blood) occurs during the incubation period, transmission through blood transfusion is exceedingly rare and not considered a significant mode of transmission.
Unlike other hepatitis viruses, HAV does not cause a chronic infection or a long-term carrier state, which further minimizes the risk of blood-borne transmission.

Option B: Hepatitis B virus (HBV) is a classic blood-borne pathogen. It is transmitted parenterally through infected blood and blood products, as well as through sexual contact and from mother to child.
Option C: Hepatitis C virus (HCV) is primarily transmitted through exposure to infected blood. Before routine screening of blood supplies began, blood transfusions were a major source of HCV infection.
Option D: Hepatitis D virus (HDV) is a blood-borne pathogen that requires a co-infection with Hepatitis B to replicate. Therefore, it is transmitted through the same parenteral routes as HBV, including blood transfusions.

Clinical Relevance

Nursing practice connection: Knowing Transmission routes of different types of viral hepatitis helps nurses interpret findings accurately and avoid errors in routine assessment, medication administration, and patient teaching.
Understanding the distinct transmission routes is crucial for nurses to implement appropriate infection control measures (e.g., Standard Precautions for B, C, D vs. Contact/Enteric Precautions for A).
This knowledge guides patient education on prevention, such as hand hygiene and food safety for Hepatitis A, and safe sex, avoiding needle sharing, and vaccination for Hepatitis B.
It explains the public health rationale behind screening all blood donations for HBV and HCV to ensure the safety of the blood supply.

How to Approach the Question

First, identify the keywords in the question: 'hepatitis', 'not transmitted', and 'blood transfusion'.
The word 'NOT' is critical; it signals that you must find the exception among the given options.
Recall the primary transmission routes for each type of hepatitis virus. A simple mnemonic is that vowels (A, E) come from the bowels (fecal-oral), while the others are typically blood/body fluid-borne.
Hepatitis A & E are transmitted via the fecal-oral route.
Hepatitis B, C, & D are transmitted via parenteral (blood-borne), sexual, and perinatal routes.
Compare these routes to the condition 'transmitted by blood transfusion' (a parenteral route).

Concept Tested & Keywords

Concept Tested: Transmission routes of different types of viral hepatitis.
Stem keywords: hepatitis, not transmitted, blood transfusion
Lead-in keywords: not
Negative lead-in flag: The question uses the word 'not', which requires identifying the option that does not fit the given condition (transmission by blood transfusion).

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