**Question:** A 12 yr old child presents with fever and cervical lymphadenopathy for last 36 hours. Oral examination shows a grey membrane on the right tonsil. What is the primary treatment?

**Core Concept:** The clinical scenario describes a pediatric patient with fever and cervical lymphadenopathy, indicating a possible infection. The presence of a grey membrane on the right tonsil suggests the involvement of tonsillitis, most commonly caused by Streptococcus pyogenes, a beta-hemolytic Gram-positive bacterium.

**Why the Correct Answer is Right:** The correct answer is **D** because it addresses the primary treatment for streptococcal tonsillitis, specifically Streptococcus pyogenes. Penicillin is the first-line antibiotic for treating streptococcal infections due to its bactericidal action, narrow spectrum, and minimal side effects when administered at the appropriate dose and duration.

**Why Each Wrong Option is Incorrect:**

**A:** This option is incorrect as it suggests using antipyretics (fever reducers) for the child, which is not the primary treatment for the identified condition. Antipyretics alleviate fever but do not address the underlying bacterial infection.

**B:** Although surgical intervention is sometimes necessary in severe cases, the given scenario calls for a medical treatment approach, making this option incorrect.

**C:** This option recommends nonsteroidal anti-inflammatory drugs (NSAIDs), which are not the primary treatment for streptococcal tonsillitis. NSAIDs are used for pain relief but do not address the bacterial infection.

**Clinical Pearl:** A clinical pearl from this scenario is the importance of a thorough history and physical examination in guiding appropriate treatment decisions. In children, the presence of fever, cervical lymphadenopathy, and a greyish membrane on the tonsils suggests streptococcal tonsillitis, which requires antibiotic therapy.

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**Correct Answer:** **D.** Penicillin VK (usually administered orally for 10 days) is the primary treatment for streptococcal tonsillitis. Penicillin VK has a narrow spectrum, targeting only Gram-positive bacteria like Streptococcus pyogenes, reducing the risk of antibiotic resistance and adverse effects.