AFP is raised in all except :
**Question:** AFP is raised in all except:
1. **Core Concept:** Alpha-Fetoprotein (AFP) is a protein produced during fetal development and in certain conditions in adults, such as liver cancer or certain germ cell tumors.
2. **Why the Correct Answer is Right:** AFP is primarily produced by fetal liver cells and yolk sac cells during pregnancy. In adults, elevated AFP levels are typically indicative of pathological conditions like cancer.
3. **Why Each Wrong Option is Incorrect:**
A. **Option A**: AFP levels are generally not elevated in normal adult liver, making this a plausible condition for elevated AFP levels.
B. **Option B**: Normal liver cirrhosis is associated with reduced AFP levels, making this a wrong answer.
C. **Option C**: Congenital heart disease does not cause elevated AFP levels.
D. **Option D**: Chronic liver disease, such as hepatitis, does not lead to elevated AFP levels in all cases. However, this is less likely compared to the other options.
4. **Clinical Pearl / High-Yield Fact:** AFP levels can be used as a screening tool for fetal aneuploidy, particularly in trisomy 21 (Down syndrome).
5. **Correct Answer:** .
Correct Answer: **Option C: Congenital heart disease**
AFP is predominantly elevated in conditions that involve hepatocellular damage or impaired liver function, as it is produced by fetal liver cells and yolk sac cells. Congenital heart disease does not lead to significant hepatocellular damage or impaired liver function, making AFP levels normal or minimally elevated. This distinguishes AFP from other conditions with elevated AFP levels, such as liver cancer or germ cell tumors, which are addressed by Options A, B, and D.