A child complains of episodes of abdominal distension, bloating and diarrhea on intake of milk & milk products. Which of the following can be given in that child?
So, the core concept here would be lactose intolerance. The underlying issue is the lack of lactase, the enzyme needed to break down lactose in the intestines. When lactose isn't broken down, it's fermented by gut bacteria, leading to gas, bloating, and diarrhea.
The correct answer would be a lactase supplement. Options might include things like lactose-free milk, probiotics, or maybe something else. But the key treatment is lactase enzyme replacement. Let's think about the options. If the given options include lactase enzyme, that's the right answer. If not, maybe lactose-free products. But since the question is about what can be given, the answer is likely lactase.
Now, the incorrect options. Let's say option A is a proton pump inhibitor. That's for acid reflux, not lactose intolerance. Option B could be a diuretic, which doesn't help here. Option C might be a probiotic, which can help with digestion but isn't the primary treatment. Option D could be a beta-lactam antibiotic, which is irrelevant.
The clinical pearl is that lactose intolerance symptoms improve with lactase supplements or lactose-free products. Also, distinguishing it from a milk allergy is important, as the symptoms are different.
Putting it all together, the correct answer is the one that provides lactase enzyme or a lactose-free alternative. The explanation should clarify why the other options are incorrect based on their mechanisms.
**Core Concept**
The question tests understanding of **lactose intolerance**, a condition caused by **deficiency of lactase enzyme** in the brush border of the small intestine. Undigested lactose undergoes bacterial fermentation in the colon, producing gas, osmotic diarrhea, and bloating.
**Why the Correct Answer is Right**
**Lactase enzyme supplements** (e.g., Lactaid) directly replace the missing enzyme, breaking down lactose into glucose and galactose for absorption. This prevents osmotic overload and bacterial overgrowth in the colon, resolving symptoms. It is the first-line intervention for lactose-intolerant individuals who consume dairy.
**Why Each Wrong Option is Incorrect**
**Option A:** *Proton pump inhibitors (PPIs)* reduce gastric acid but do not address lactose digestion.
**Option B:** *Antibiotics* target bacterial overgrowth but are not indicated unless specific infections are present.
**Option C:** *Antispasmodics* may reduce cramping but do not treat the root cause of undigested lactose.
**Clinical Pearl**
Lactose intolerance is **not an allergy** but a **congenital or acquired enzyme deficiency**. Always differentiate it from IgE-mediated milk allergy (urticaria, anaphylaxis). Use **hydrogen breath tests** or **stool pH testing** for confirmation in children.
**Correct Answer: D. Lactase enzyme preparation**