Which statement regarding transmission of viral illness through homologous blood transfusion is true?
**Core Concept**
The transmission of viral illnesses through homologous blood transfusion is a significant concern in transfusion medicine. This is because blood products can harbor viruses, which can be transmitted to recipients, leading to various complications.
**Why the Correct Answer is Right**
The correct answer highlights the risk of post-transfusion hepatitis, which can lead to serious complications such as cirrhosis and hepatoma. Hepatitis B and C viruses are the most common causes of post-transfusion hepatitis. These viruses can be transmitted through blood transfusions if the blood products are not properly screened or if the screening tests are not sensitive enough. The risk of developing cirrhosis or hepatoma after post-transfusion hepatitis is significant, with estimates suggesting that up to 10% of affected individuals may progress to these severe liver diseases.
**Why Each Wrong Option is Incorrect**
**Option A:** HIV is a significant concern in blood transfusion, but it is not the most common viral agent transmitted via blood transfusion. Hepatitis B and C viruses are more commonly transmitted through blood transfusions.
**Option B:** CMV (Cytomegalovirus) is a concern in blood transfusion, particularly in immunocompromised patients. However, CMV infection is not often fatal, and blood is not routinely tested for CMV.
**Option C:** Viral meningitis is a potential complication of blood transfusion, but it is not the most frequent infectious complication. Bacterial contamination of blood products is a more common cause of transfusion-related infections.
**Clinical Pearl / High-Yield Fact**
It is essential to note that the risk of post-transfusion hepatitis can be significantly reduced by implementing robust screening and testing protocols for blood products, including the use of nucleic acid testing (NAT) for hepatitis B and C viruses.
**✓ Correct Answer: D. Up to 10% of those who develop post transfusion hepatitis will develop cirrhosis or hepatoma or both.**