Family Nurse Practitioner Predictor Practice Test 2025 – Your All-in-One Guide to Exam Success!

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What is the first-line treatment for a 76-year-old male with infiltrates on chest X-ray?

Amoxicillin 1 gram TID

The first-line treatment for a 76-year-old male with infiltrates on a chest X-ray would typically be based on the suspicion of community-acquired pneumonia (CAP) and the patient's age and overall health. In older adults, risk factors such as age and the presence of comorbidities make them prone to various types of pneumonia, including those caused by typical bacteria.

Amoxicillin is a preferred first-line treatment for CAP due to its efficacy against Streptococcus pneumoniae, which is a common causative organism in uncomplicated cases. The dosage of 1 gram three times a day provides sufficient levels of the drug to effectively target the bacteria responsible for the pneumonia.

The other options, while they may have their uses in specific situations or with other populations, are not considered the first-line approach in this context. Doxycycline may be considered if atypical organisms are suspected, but it is not the first choice for typical CAP treatment in older adults. Azithromycin and clarithromycin, both macrolide antibiotics, are usually reserved for cases where there is a need to cover atypical pathogens or when there is a concern for drug resistance. They may also have interactions or side effects that can be problematic, especially in older patients.

Thus

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Doxycycline 100 mg BID

Azithromycin 500 mg on first day, then 250 mg daily

Clarithromycin 500 mg BID

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