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 A
Explanation
A. Huntington disease is an autosomal dominant genetic disorder, meaning that if one parent has the gene, each child has a 50% chance of inheriting it. Therefore, all family members are at risk for the disease.
B. While genetic testing may be relevant for the patient’s children, it is not limited only to them. The patient and other family members are also at risk and may choose to be tested.
C. Huntington disease typically manifests between ages 30 and 50, and there is no age cutoff for determining risk. Early diagnosis may occur, but not being diagnosed by age 20 does not rule out the disease.
D. While genetic testing can confirm the presence of the gene, it is not the only way to determine risk. Family history and clinical symptoms are also key factors in understanding the risk for Huntington disease.
Correct Answer is C
Explanation
A. Palpebral angle rigid, right and left angles is not a part of the PERRLA assessment. The term refers to the space between the eyelids, which is not assessed with the PERRLA acronym.
B. Patient's eyes round, regular, lively, active is a description of the general appearance of the eyes but does not correspond to the PERRLA acronym, which specifically addresses the pupils' response to light and accommodation.
C. PERRLA stands for Pupils Equal, Round, and Reactive to Light and Accommodation. This means the pupils should be equal in size, round in shape, react to light (constricting when exposed to light), and accommodate (adjust) when focusing on near or far objects. This is a standard neurological assessment used to evaluate the functioning of the eyes and the nervous system.
D. Pupils equilateral, regular, round, little accommodation does not accurately describe PERRLA. The correct term is "accommodation," which refers to the pupils' ability to adjust when focusing on near or far objects, not "little accommodation."
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