A client with a primary brain tumor is to receive radiation after undergoing surgery to remove the tumor. The nurse knows that they may not receive chemotherapy because of the following reason.
Chemotherapy has side effects
Difficulty for chemotherapy to go through the blood-brain barrier
Chemotherapy is not needed with brain tumors as they never metastasize
Chemotherapy is not used to treat cancer
The Correct Answer is B
A. While chemotherapy does have side effects, this is not the primary reason for its limited use in treating brain tumors. Side effects are a consideration but not the main obstacle.
B. The blood-brain barrier is a selective permeability barrier that limits the ability of many chemotherapy drugs to pass from the bloodstream into the brain tissue. This makes it difficult for chemotherapy to effectively treat brain tumors.
C. Brain tumors can metastasize and spread to other parts of the body, so chemotherapy may still be needed, especially in cases of malignant tumors.
D. Chemotherapy is commonly used to treat cancer, including brain tumors, but the blood-brain barrier poses a significant challenge in its effectiveness.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["2"]
Explanation
Set up the equation:
Desired dose / Available dose per tablet = Number of tablets
Plug in the values:
275 mcg / 137 mcg/tablet = Number of tablets
Calculate:
275 / 137 = 2.007
Round to the nearest whole number:
2.007 rounds to 2
Answer = 2 tablets
Correct Answer is B
Explanation
A. A blood pressure cuff is not directly needed to assess neurological status. While blood pressure is important to monitor in neurological assessments, it is not the primary tool used for assessing neurological function.
B. A pen light is essential for assessing pupil reaction, which is a key part of a neurological exam. The nurse can use the pen light to check for pupil dilation, constriction, and reaction to light, which are important indicators of brain function.
C. A thermometer is useful for measuring body temperature but is not a primary tool for assessing neurological status. Although fever can be a sign of infection affecting the brain, it is not part of the basic neurological exam.
D. A stethoscope is useful for listening to heart and lung sounds, but it is not typically used for assessing neurological function. The pen light is the more appropriate tool for this purpose.
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