This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Sexually Transmitted Infections, Subject name: Dental
[{'content': 'Worldwide accepted minimum dose of Benzathine penicillin in Teiary syphilis? \nSelect and explain. \nA. 4.8 Milion IU, B. 6 Million IU, C. 7.2 Million IU, D. 10 Million IU', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Recommendations for the Treatment of Syphilis Stage of Syphilis Patients without Penicillin Allergy Patients with Confirmed Penicillin Allergy Primary, secondary, or early latent Penicillin G benzathine (single dose of 2.4 MU IM) Tetracycline hydrochloride (500 mg PO QID) or Doxycycline (100 mg PO BID) for 2 weeks Late latent (or latent of unceain duration), cardiovascular, or benign teiary Lumbar puncture CSF normal: Penicillin G benzathine 2.4 MU IM weekly for 3 weeks(total of 7.2 MU) CSF abnormal: Treat as neurosyphilis Lumbar puncture CSF normal and patient not infected with HIV: Tetracycline hydrochloride (500 mg PO QID) or Doxycycline (100 mg PO BID) for 4 weeks CSF normal and patient infected with HIV: Desensitization and treatment with penicillin if compliance cannot be ensured CSF abnormal: Treat as neurosyphilis Neurosyphilis (asymptomatic or symptomatic) Aqueous penicillin G (18- 24 MU/d IV, given as 3-4 MU 4h or continuous infusion) for 10-14 days or Aqueous penicillin G procaine (2.4 MU/d IM) plus oral probenecid (500 mg QID), both for 10-14 days Desensitization and treatment with penicillin Syphilis in pregnancy According to stage Desensitization and treatment with penicillin', 'role': 'assistant'}]