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 C

Explanation

A. While GBS primarily affects peripheral nerves (nerves outside the brain and spinal cord), it does not typically cause direct degeneration of nerves in the brainstem and spinal cord. Therefore, this option is not correct in the context of respiratory distress in GBS.
B. Pleural effusion caused by immobility: Pleural effusion, an accumulation of fluid in the pleural cavity around the lungs, is not a typical complication of GBS. It is more commonly associated with conditions such as heart failure, pneumonia, or malignancy, rather than directly with GBS.
C. In Guillain-Barre Syndrome, demyelination of nerves affects the transmission of signals from the brain to the muscles, including those responsible for respiration. As a result, respiratory muscles may become weak or paralyzed, leading to shallow breathing and respiratory distress.
D. While respiratory distress can occur in some neurological conditions due to autonomic dysfunction or secondary complications, such as aspiration pneumonia, bronchoconstriction and airway edema are not typical manifestations of GBS itself.

A. Leave the affected area open to air when you are at home. B. Limit ice-pack application to the area to 20 minutes at a time. C. Lubricate the area with an alcohol-based lotion. D. You may use aloe vera gel on the affected skin. E. Clean the area with betadine to prevent infection.

Correct Answer is ["A","D"]

Explanation

A. Allowing the affected skin to be exposed to air can help in promoting healing and preventing further irritation. However, it's essential to ensure the environment is clean and that the area is protected from friction and contamination.
B. Ice packs should be avoided as they can cause further irritation to the radiated skin, and alcohol- based lotions can be drying and may exacerbate skin reactions.

C. Alcohol-based lotions can be drying and irritating to sensitive, radiation-treated skin. It's preferable to use gentle, non-alcohol-based moisturizers or barrier creams that are specifically designed for sensitive skin. These can help soothe the skin and prevent excessive dryness and irritation.
D. Aloe vera gel is known for its soothing and moisturizing properties, which can help alleviate discomfort and promote healing of radiation-damaged skin. It is gentle and generally well-tolerated by most individuals.
E. Betadine (povidone-iodine) can be too harsh for radiation-damaged skin and may further irritate the area. Gentle cleansing with mild soap and water is recommended to keep the area clean and minimize the risk of infection.

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Which of the following describes a characteristic of cancer cells?

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Naxlex Comprehensive Predictor Exams

A nurse is assessing a client who has Guillain-Barre Syndrome, and notes that the client's breathing is shallow and the client is short of breath. The nurse understands that that the client's respiratory distress is caused by which of the following?

Correct Answer is C

Explanation

A client who is undergoing external beam radiation for prostate cancer has developed desquamation of the skin in the treatment area. Which of the following statements should the nurse plan to include for this patient? (Select all that apply.)

Correct Answer is ["A","D"]

Explanation

A nurse is caring for a client who has myasthenia gravis which has not responded to medication treatments. Which of the following surgeries can treat myasthenia gravis?

A nurse on a telemetry unit receives change-of-shift report on four clients. Which of the following clients should the nurse assess first?

Which type of elder mistreatment is demonstrated by a caregiver leaving a nursing home resident alone in his room for long periods at a time with no opportunity for social stimulation?

The classic manifestations associated with Parkinson's disease are tremor, rigidity, bradykinesia, and postural instability. The nurse understands that a finding related to postural instability includes which of the following?

Which pathophysiologic change is found in the brain tissue of people who have Alzheimer's disease?

A client on a medical-surgical unit has been diagnosed with Guillain-Barre Syndrome. The nurse understands that in addition to supportive care, which treatment can be used within the first 2 weeks of symptom onset?

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