Tumor markers are substances that may be detected in cells or body fluids and can provide clues to the presence, extent, and treatment response of certain neoplasms. What is an example of a tumor marker?
CA125
H&H levels
Vitamin D levels
Amylase levels
The Correct Answer is A
Choice A reason: CA125, also known as Cancer Antigen 125, is a protein that is often elevated in ovarian cancer. It is used as a tumor marker to monitor treatment response and detect recurrence in patients with ovarian cancer. While CA125 can also be elevated in other conditions, it is most commonly associated with ovarian cancer and is a valuable tool in the management of this disease.
Choice B reason: H&H levels refer to hemoglobin and hematocrit levels, which are measures of red blood cells in the blood. While these levels can provide important information about a patient's overall health and can be affected by various conditions, they are not specific tumor markers used to detect or monitor cancer.
Choice C reason: Vitamin D levels are important for bone health and overall well-being, but they are not used as tumor markers. Vitamin D deficiency or excess can have various health implications, but it does not provide specific information about the presence or progression of cancer.
Choice D reason: Amylase levels are enzymes that help digest carbohydrates. Elevated amylase levels can indicate pancreatic issues, such as pancreatitis, but they are not used as tumor markers for cancer detection or monitoring. Amylase levels are more relevant to gastrointestinal and pancreatic health rather than oncology.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
Choice A reason: This statement is partially correct but does not fully address the question about glucose readings. The Dawn Phenomenon involves an increase in blood glucose levels in the early morning due to the release of counter-regulatory hormones (like cortisol and growth hormone) that increase insulin resistance and stimulate glucose release from the liver.
Choice B reason: This statement is true but incomplete. The Dawn Phenomenon is indeed caused by the release of certain hormones, but this option does not specify the timing or the glucose readings.
Choice C reason: While the hyperglycemia associated with the Dawn Phenomenon does typically occur between 4 a.m. and 9 a.m., this option does not fully describe the nature of the glucose readings. It is more important to note that the hyperglycemia is not due to overnight hypoglycemia.
Choice D reason: This statement accurately describes the Dawn Phenomenon. It is characterized by morning hyperglycemia that is not caused by overnight hypoglycemia. Instead, it is due to the body's natural release of counter-regulatory hormones, which increase blood glucose levels during the early morning hours.
Correct Answer is C
Explanation
Choice A reason: This explanation is not correct. The reason why oral medications are not used for type 1 diabetes is not related to the child's ability to take the entire dose. The primary issue is the nature of insulin and how it must be administered.
Choice B reason: This statement is incorrect. The use of insulin injections is not based on age but on the type of diabetes. Type 1 diabetes requires insulin therapy regardless of the patient's age.
Choice C reason: Insulin is a protein that, if taken orally, would be broken down by the digestive enzymes in the gastrointestinal tract, rendering it ineffective. For this reason, insulin must be administered through subcutaneous injections to ensure it reaches the bloodstream intact and can effectively regulate blood glucose levels.
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.