Which of the following describes a characteristic of cancer cells?

Maintaining specialized cell functions

Loss of contact inhibition

Ability to repair DNA damage

Orderly cell cycle progression

Answer and Explanation

The Correct Answer is B

A.   Cancer cells typically lose their specialized functions and characteristics that normal cells have. This loss of differentiation is known as dedifferentiation, where cancer cells become less specialized and more primitive in nature. This allows them to proliferate rapidly and invade surrounding tissues.
B.   Contact inhibition refers to the normal process where cells stop dividing when they come into contact with neighboring cells. In cancer cells, this mechanism is disrupted, leading to uncontrolled cell growth and proliferation. Cancer cells continue to divide and grow even when they are in close contact with other cells, which contributes to tumor formation and progression.
C.   Cancer cells often acquire mutations that impair their ability to repair DNA damage effectively. This can lead to an accumulation of genetic mutations over time, which is a hallmark of cancer development. While some cancer cells may still have mechanisms to repair DNA damage, they are often less efficient compared to normal cells, leading to genomic instability and further mutation accumulation.
D.   Normal cells follow a tightly regulated cell cycle with specific checkpoints that ensure orderly progression through phases such as G1, S, G2, and M phases. In contrast, cancer cells often have dysregulated cell cycle control. They may bypass checkpoints that normally control cell division, leading to uncontrolled proliferation and growth.

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Correct Answer is B

Explanation

A. This option is not directly related to preventing exacerbations in COPD. While managing fluid intake may be important for individuals with certain cardiovascular or renal conditions, it is not a recognized strategy for preventing COPD exacerbations.
B. Influenza vaccination is highly recommended for individuals with COPD. Respiratory infections, such as influenza (flu), can trigger exacerbations in COPD. By receiving an annual influenza vaccine, the client can reduce the risk of developing influenza-related exacerbations and complications.
C. Pursed-lip breathing is a breathing technique that can help improve ventilation and decrease the work of breathing for individuals with COPD. It can be beneficial during exacerbations or episodes of dyspnea (shortness of breath). While it does not directly prevent exacerbations, it is a useful technique to manage symptoms and potentially reduce the severity of exacerbations.
D. The tripod position, where a person leans forward with hands supported on their knees or another surface, can help COPD patients during exacerbations by allowing better chest expansion and improving breathing mechanics. It can relieve dyspnea and help stabilize breathing. While it does not prevent exacerbations, it is a helpful technique during episodes of increased respiratory distress.

A. "Use this inhaler as the first-line medication to relieve acute symptoms." B. "Inspect your mouth daily for signs of thrush." C. "Check your heart rate before each dose." D. "Skip the morning dose if you do not have any symptoms."

Correct Answer is B

Explanation

A. Fluticasone is a corticosteroid inhaler used for maintenance therapy to reduce inflammation in the airways over time. It is not a rescue medication for acute symptoms. Clients with COPD should use short-acting bronchodilators (such as albuterol) as their first-line treatment for relieving acute symptoms like shortness of breath or wheezing.
B. This statement is correct. Fluticasone is a corticosteroid medication that, when inhaled, can increase the risk of developing oral candidiasis (thrush). Clients should be instructed to rinse their mouth with water and spit after using the inhaler to minimize this risk. Inspecting the mouth daily for signs of white patches, soreness, or difficulty swallowing is important. If thrush develops, clients may need antifungal treatment.
C. This statement is not necessary for fluticasone inhaler use. Fluticasone is not known to significantly affect heart rate. Monitoring heart rate before each dose is more relevant for medications that can cause changes in heart rate, such as bronchodilators (e.g., beta-agonists). However, clients should monitor for symptoms like palpitations or rapid heart rate and report them to their healthcare provider.
D. Fluticasone is a maintenance medication that should be taken regularly as prescribed, regardless of symptoms. Skipping doses can lead to worsening of COPD symptoms and exacerbations. Clients should adhere to the prescribed dosing schedule to achieve optimal control of their condition.

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Which of the following describes a characteristic of cancer cells?

Nursing Test Bank

Naxlex Comprehensive Predictor Exams

A nurse is discussing treatments and interventions with a client who has chronic obstructive pulmonary disease (COPD). Which of the following would assist in preventing exacerbations?

Correct Answer is B

Explanation

A nurse is providing education to a client who has chronic obstructive pulmonary disease and will begin using fluticasone by metered dose inhaler every 12 hours for maintenance. Which of the following instructions should the nurse include?

Correct Answer is B

Explanation

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A nurse is providing education to a client who has chronic obstructive pulmonary disease and will begin using fluticasone by metered dose inhaler every 12 hours for maintenance. Which of the following instructions should the nurse include?

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