Final answer:
The exposure to erythromycin in a 10-day old infant is typically through an eye ointment to prevent neonatal conjunctivitis and treat bacterial infections. It inhibits protein synthesis in bacteria, and it is vital to complete the prescribed course to prevent drug resistance.
Step-by-step explanation:
The exposure to erythromycin in a 10-day old infant typically occurs as a preventative measure against neonatal conjunctivitis and other bacterial infections, notably those acquired during vaginal delivery. Erythromycin is an antibiotic that functions by inhibiting protein synthesis in sensitive microorganisms, effectively preventing and treating infections.
In newborns, it is commonly used as an eye ointment post-delivery, to prevent eye infections that, if untreated, can lead to serious complications such as corneal ulceration or even permanent blindness. Additionally, erythromycin may be prescribed orally or intravenously to treat various bacterial infections if the neonate is diagnosed with one.
Moreover, it is important to administer the full course of erythromycin or any antibiotic as prescribed. Incomplete treatment can lead to the development of drug-resistant bacteria, posing a significant health concern. Thus, a 10-day course should be completed as directed unless advised otherwise by a healthcare professional.