Prior to administering a drug used to treat anemia, the nurse should assess a client's vital signs, ability to carry out activities of daily living, and general appearance, and for the presence of which of the following other general symptoms?

Choice A rationale:

Naturally acquired active immunity occurs when an individual is exposed to a disease-causing agent for the first time and develops immunity through their immune response. In this case, the client is exposed to chickenpox for the first time, and the immune system will produce antibodies to provide future protection.

Choice B rationale:

Administration of a vaccine (varicella vaccine) is an example of artificially acquired active immunity. The client's immune system responds to the weakened or inactivated pathogen in the vaccine to produce immunity. This choice does not represent naturally acquired immunity.

Choice C rationale:

Similar to choice B, administration of the influenza vaccine is an example of artificially acquired active immunity. The vaccine contains inactivated influenza virus components, prompting the individual's immune system to develop immunity.

Choice D rationale:

Administration of the rubella vaccine is another example of artificially acquired active immunity. The vaccine stimulates the immune system to produce antibodies against rubella, but this is not an example of naturally acquired immunity.

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.