A nurse is caring for a client with suspected tuberculosis (TB) who has provided sputum samples for testing. Which laboratory test is used to confirm the presence of Mycobacterium tuberculosis in sputum samples?

A) Incorrect. LTBI does not always progress to active TB disease. Many individuals with LTBI do not develop active disease, especially if they have a strong immune system.

B) Incorrect. While the risk of progression is highest in the first two years after LTBI, it can occur at any time, and some individuals may progress years or even decades later.

C) Correct. LTBI rarely progresses to active TB, especially in individuals with a strong immune system. Most people with LTBI do not develop active disease.

D) Incorrect. LTBI carries a risk of progressing to active TB disease, although the risk is relatively low in many individuals.

A) Incorrect. While it is essential to minimize close contact, isolation from family members is not typically necessary. Effective treatment and infection control measures can reduce the risk of transmission.

B) Incorrect. Wearing a mask at all times at home may not be necessary, but it is important to follow respiratory hygiene practices, especially when close to others.

C) Correct. Good hand hygiene and proper respiratory etiquette, such as covering the mouth when coughing, can help reduce the risk of TB transmission within the household.

D) Incorrect. TB can be transmitted in close household settings, so infection control measures are important to prevent transmission to family members.