A patient is experiencing nausea and decreased appetite during drug therapy with a tetracycline antibiotic.
What is the nurse’s best advice to the patient?

Choice A rationale:

Acyclovir is an antiviral medication used to treat infections caused by certain types of viruses. It is primarily used for the treatment of herpes simplex virus infections, chickenpox, and shingles. However, it is not typically used as an anti-HIV drug.

Choice B rationale:

Ribavirin is an antiviral medication used to treat hepatitis C and certain other viral infections. While it has broad-spectrum antiviral activity, it is not specifically used to prevent mother-to-child transmission of HIV.

Choice C rationale:

Foscarnet is an antiviral medication used to treat or prevent cytomegalovirus (CMV) retinitis in individuals with AIDS. It is also used to treat cold sores and genital herpes. However, it is not the first-line choice for preventing mother-to-child transmission of HIV.

Choice D rationale:

Zidovudine, also known as AZT, is an antiretroviral medication used to prevent and treat HIV/AIDS. It is generally safe for use during pregnancy and is commonly used to prevent mother-to-child transmission of HIV12. It works by inhibiting the reverse transcriptase enzyme, thereby blocking viral replication. The use of Zidovudine and other antiretroviral drugs in pregnant women with HIV has significantly reduced the rate of mother-to-child transmission of the virus.

Choice A rationale:

Erythromycin Erythromycin is a macrolide antibiotic that is often used as an alternative to penicillin. It is generally safe for use in patients with a penicillin allergy. It works by inhibiting bacterial protein synthesis and is effective against a wide range of bacteria.

Choice B rationale:

Amphotericin B Amphotericin B is an antifungal medication, not an antibiotic. It is used to treat serious, systemic fungal infections. It has no cross-reactivity with penicillin, so it would not be a concern for a patient with a penicillin allergy.

Choice C rationale:

Amoxicillin-clavulanate Amoxicillin-clavulanate is a type of penicillin antibiotic. Patients with a known penicillin allergy should avoid this medication, as they may have a cross-reactivity to it. This is why the nurse should verify this prescription with the provider.

Choice D rationale:

Gentamicin Gentamicin is an aminoglycoside antibiotic used to treat serious bacterial infections caused by gram-negative bacteria. It is not related to penicillin and would be safe for a patient with a penicillin allergy.