A client has been diagnosed with tuberculosis. How long does the nurse anticipate this client will require treatment?

A. Headaches:

Headaches are a common symptom that can occur for various reasons, including stress, tension, dehydration, or as a side effect of medications. While headaches can sometimes occur as a side effect of certain drugs, they are not specific indicators of a drug allergy. Allergic reactions to medications typically involve other symptoms such as rash, hives, itching, swelling, or respiratory symptoms.

B. Hives or shortness of breath:

Hives (urticaria) are raised, red, itchy welts on the skin that can occur as an allergic reaction to medications. They are a common manifestation of drug allergies. Shortness of breath (dyspnea) can occur as part of a severe allergic reaction known as anaphylaxis. Anaphylaxis is a life-threatening allergic reaction characterized by a rapid onset of symptoms, including difficulty breathing, swelling of the throat or tongue, rapid heart rate, and low blood pressure. Both hives and shortness of breath are significant signs of a potential drug allergy and require immediate attention.

C. Diarrhea:

Diarrhea can occur as a side effect of medications, including antibiotics. However, it is not typically a specific indicator of a drug allergy. Diarrhea is more commonly associated with gastrointestinal disturbances or as a reaction to changes in gut flora due to antibiotic use.

D. Nausea:

Nausea is a common side effect of many medications, including antibiotics. While it can be bothersome, nausea alone is not a specific indicator of a drug allergy. Allergic reactions to medications typically involve other symptoms such as rash, hives, itching, swelling, or respiratory symptoms.

A. Permanent, inheritable changes to DNA:

Mutations are alterations or changes in the DNA sequence of an organism's genome. These changes can be permanent and heritable, meaning they are passed on to offspring during reproduction. Mutations can occur spontaneously or be induced by various factors such as environmental agents, radiation, or errors in DNA replication or repair mechanisms. These changes can lead to variations in traits among individuals within a population and are essential for the process of evolution.

B. An organism that is capable of causing disease:

This definition refers to the term "pathogen." Pathogens are organisms, such as bacteria, viruses, fungi, or parasites, that are capable of causing disease in their hosts. Pathogens can infect humans, animals, plants, or other organisms and can lead to a wide range of diseases, from mild infections to life-threatening illnesses.

C. The severity of a disease that an organism is able to cause:

This definition refers to the term "virulence." Virulence is a measure of the severity or harmfulness of a pathogen, indicating its ability to cause disease in a host organism. Highly virulent pathogens are more likely to cause severe illness or death, while less virulent pathogens may cause milder symptoms or asymptomatic infections. Virulence factors, such as toxins, adhesion molecules, or evasion mechanisms, contribute to the pathogen's ability to cause disease.

D. A substance that can inhibit the growth of bacteria:

This definition refers to the term "antibiotic." Antibiotics are chemical substances produced by microorganisms, fungi, or synthesized in the laboratory that can inhibit the growth of or kill bacteria. Antibiotics are commonly used to treat bacterial infections and work by targeting specific bacterial structures or metabolic processes, thereby disrupting bacterial growth and survival. However, antibiotics are not mutations; instead, they are therapeutic agents used to combat bacterial infections.