The nurse is teaching a client about possible adverse reactions that can occur with tetracyclines.
The nurse determines that the teaching was successful when the client identifies which of the following?

Choice A rationale:

Isoniazid Isoniazid is one of the first-line drugs used in the initial treatment phase of tuberculosis (TB). It is a key component of the standard regimen for TB treatment. Isoniazid is highly effective against Mycobacterium tuberculosis, the bacterium responsible for TB, and it plays a critical role in the initial phase of treatment to rapidly reduce the bacterial load.

Choice B rationale:

Ciprofloxacin Ciprofloxacin is not a first-line drug for the treatment of tuberculosis. While it has antibacterial properties, it is not considered one of the primary agents for TB treatment. It is more commonly used to treat other types of bacterial infections, such as urinary tract infections.

Choice C rationale:

Gentamycin Gentamycin is not typically used as a first-line treatment for TB. It is reserved for specific situations, such as drug-resistant TB cases, and is not part of the standard initial treatment regimen for TB.

Choice D rationale:

Clindamycin Clindamycin is not a first-line drug for the treatment of tuberculosis. It is primarily used to treat anaerobic bacterial infections and is not a standard part of TB treatment protocols.

Choice A rationale:

Bloody diarrhea is not typically associated with a fungal superinfection. This symptom is more indicative of gastrointestinal issues and may be related to other causes such as infection or inflammatory bowel disease.

Choice B rationale:

Abdominal cramping is also not a typical sign of a fungal superinfection. It is more likely to be associated with gastrointestinal problems, food intolerances, or other conditions.

Choice D rationale:

Heartburn is not a common sign of a fungal superinfection. It is usually associated with gastroesophageal reflux disease (GERD) or other gastrointestinal issues. Creamy white patches on the throat (Choice C) are indicative of oral thrush, a fungal superinfection. This condition is caused by the overgrowth of Candida albicans and is commonly seen in individuals with compromised immune systems, such as those on immunosuppressive therapy or with HIV. It is important to recognize these white patches as they may require treatment with antifungal medications to prevent further complications.