A nurse is learning the difference between normal cells and benign tumor cells. What information does this include?
Benign tumors have lost their cellular regulation from contact inhibition.
Growing in the wrong place or time is typical of benign tumors.
Benign tumors grow through invasion of other tissue.
The loss of characteristics of the parent cells is called anaplasia.
The Correct Answer is B
Choice A rationale:
Contact inhibition is a normal mechanism that regulates cell growth. When normal cells come into contact with each other, they stop growing. This prevents uncontrolled growth and the formation of tumors.
Benign tumor cells do not typically lose contact inhibition. They still respond to contact signals from neighboring cells and stop growing when they come into contact with each other.
However, they may grow in an uncontrolled manner due to other factors, such as mutations in genes that regulate cell growth.
Choice C rationale:
Invasion is a characteristic of malignant (cancerous) tumors, not benign tumors. Malignant tumors have the ability to invade surrounding tissues and spread to other parts of the body.
Benign tumors, on the other hand, are localized and do not invade surrounding tissues. They may grow and compress nearby tissues, but they do not spread.
Choice D rationale:
Anaplasia is a term used to describe the loss of differentiation of cells in a tumor. This means that the cells no longer resemble the normal cells from which they originated.
Anaplasia is a characteristic of malignant tumors, not benign tumors. Benign tumor cells typically retain some of the characteristics of the parent cells.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
Choice A rationale:
Addresses the family's fear directly: By demonstrating how to avoid spreading the disease, the nurse directly addresses the family's primary concern, which is the fear of contracting the infection. This proactive approach provides education and reassurance, empowering the family to make informed decisions about visitation.
Promotes understanding and adherence to precautions: Clear instruction on how to don and doff personal protective equipment, hand hygiene techniques, and other infection control measures increases the likelihood that the family will follow the precautions correctly, reducing the risk of transmission.
Empowers the family to make informed choices: By providing knowledge and skills, the nurse enables the family to feel more confident in their ability to visit safely. This sense of control can help to alleviate anxiety and promote positive coping mechanisms.
Facilitates open communication and trust: The demonstration creates an opportunity for the nurse to answer questions, address concerns, and build rapport with the family. This open dialogue can foster trust and collaboration, which are essential for effective care.
Choice B rationale:
May provide false reassurance: While it's important to offer support and hope, it's not always possible to guarantee that family members will not contract the infection. Absolute reassurances could potentially lead to complacency or disregard for precautions, increasing the risk of transmission.
Fails to address the need for education: Simply stating that the family won't get sick doesn't provide them with the knowledge and skills needed to protect themselves and the client. This lack of understanding could result in accidental transmission.
Choice C rationale:
May pressure the family: Encouraging visitation without addressing underlying fears and concerns could be perceived as pressure, leading to resentment, anxiety, or even avoidance. It's important to respect the family's decision-making process and provide support regardless of their choice.
Doesn't prioritize safety: While emotional support is important, the primary focus should be on ensuring the safety of both the client and the family. Encouraging visitation without proper education and precautions could compromise safety.
Choice D rationale:
Focuses on compliance rather than understanding: Informing the family about legal mandates may come across as authoritarian and could potentially increase anxiety or resistance. It's more effective to focus on the rationale behind the precautions and emphasize their role in protecting both the client and the family.
Misses an opportunity to build trust: Simply stating the rules without engaging in dialogue may hinder open communication and trust-building. Taking a collaborative approach and addressing concerns can lead to better understanding and adherence to precautions.
Correct Answer is D
Explanation
Choice A rationale:
Metabolic alkalosis is a condition characterized by an increase in the pH of the blood due to an excess of bicarbonate (HCO3-) in the body. It is not typically caused by severe diarrhea. In fact, diarrhea can often lead to a loss of bicarbonate, which can contribute to metabolic acidosis.
Causes of metabolic alkalosis include: excessive vomiting, use of diuretics, and excessive intake of alkali such as antacids. Clinical manifestations of metabolic alkalosis include: muscle twitching, paresthesias, seizures, confusion, and lethargy.
Choice B rationale:
Respiratory alkalosis is a condition characterized by a decrease in the partial pressure of carbon dioxide (PaCO2) in the blood, leading to an increase in blood pH. It is caused by hyperventilation, which removes excess CO2 from the body. Severe diarrhea does not typically cause hyperventilation.
Causes of respiratory alkalosis include: anxiety, hyperventilation syndrome, high altitude sickness, and pulmonary embolism. Clinical manifestations of respiratory alkalosis include: lightheadedness, dizziness, paresthesias, palpitations, and tetany.
Choice C rationale:
Respiratory acidosis is a condition characterized by an increase in the partial pressure of carbon dioxide (PaCO2) in the blood, leading to a decrease in blood pH. It is caused by hypoventilation, which prevents the body from removing enough CO2. Severe diarrhea does not typically cause hypoventilation.
Causes of respiratory acidosis include: chronic obstructive pulmonary disease (COPD), pneumonia, asthma, and neuromuscular disorders.
Clinical manifestations of respiratory acidosis include: headache, confusion, somnolence, and coma.
Choice D rationale:
Metabolic acidosis is a condition characterized by a decrease in the pH of the blood due to an excess of acid in the body or a loss of bicarbonate. Severe diarrhea can lead to metabolic acidosis through several mechanisms:
Loss of bicarbonate in the stool: Diarrhea often contains a significant amount of bicarbonate, which can be lost from the body in large amounts during severe diarrheal episodes. This loss of bicarbonate can lead to a decrease in the blood's pH, resulting in metabolic acidosis.
Dehydration: Severe diarrhea can also lead to dehydration, which can concentrate acids in the blood and contribute to metabolic acidosis.
Lactic acidosis: In some cases, severe diarrhea can also cause lactic acidosis, a type of metabolic acidosis that occurs when there is a buildup of lactic acid in the body. This can happen due to impaired circulation or tissue hypoxia, which can occur as a complication of severe diarrhea.
Whether you are a student looking to ace your exams or a practicing nurse seeking to enhance your expertise , our nursing education contents will empower you with the confidence and competence to make a difference in the lives of patients and become a respected leader in the healthcare field.
Visit Naxlex, invest in your future and unlock endless possibilities with our unparalleled nursing education contents today
Report Wrong Answer on the Current Question
Do you disagree with the answer? If yes, what is your expected answer? Explain.
Kindly be descriptive with the issue you are facing.