NCLEX-PN
Quizlet NCLEX PN 2023
1. When caring for a client with a possible diagnosis of placenta previa, which of the following admission procedures should the nurse omit?
- A. perineal shave
- B. enema
- C. urine specimen collection
- D. blood specimen collection
Correct answer: B
Rationale: The correct answer is 'enema.' Administering an enema to a client with placenta previa can dislodge the placenta, leading to an increased risk of bleeding and complications. It is crucial to avoid any interventions that may disrupt the placenta's positioning. Collecting urine and blood specimens are necessary for diagnostic purposes and monitoring, while a perineal shave is a routine procedure that does not pose a risk to the client with placenta previa.
2. What are the side effects of first-generation over-the-counter (OTC) antihistamines like diphenhydramine (Benadryl) and hydroxyzine (Atarax) in infants and children?
- A. Reye's syndrome.
- B. cholinergic effects.
- C. paradoxical CNS stimulation.
- D. nausea and diarrhea.
Correct answer: C
Rationale: The correct answer is paradoxical CNS stimulation. First-generation OTC antihistamines, such as diphenhydramine and hydroxyzine, can lead to paradoxical CNS stimulation in infants and children. This phenomenon is characterized by symptoms like excitement, euphoria, restlessness, and confusion, rather than the expected sedative effect. Due to this unexpected response, these antihistamines are used less frequently in pediatric populations. Reye's syndrome is a rare systemic response to a virus and is not a side effect of antihistamines. First-generation OTC antihistamines do not typically exhibit cholinergic effects. Nausea and diarrhea are uncommon side effects of these antihistamines and are less commonly observed than paradoxical CNS stimulation.
3. The chemotherapeutic agent 5-fluorouracil (5-FU) is ordered for a client as an adjunct measure to surgery. Which statement about chemotherapy is true?
- A. It is a local treatment affecting only tumor cells.
- B. It is a systemic treatment affecting both tumor and normal cells.
- C. It has not yet been proven an effective treatment for cancer.
- D. It is often the drug of choice because it causes few, if any, side effects.
Correct answer: B
Rationale: The correct answer is that chemotherapy is a systemic treatment affecting both tumor and normal cells. 5-FU, as an antimetabolic drug, inhibits DNA synthesis and interferes with cell replication systemically. It affects all rapidly growing cells, including malignant and normal ones. This drug is used as adjuvant therapy for various cancers. Choice A is incorrect because chemotherapy affects both tumor and normal cells, not just tumor cells. Choice C is incorrect as chemotherapy has been proven effective in treating cancer. Choice D is incorrect because chemotherapy often causes side effects like bone marrow depression, anorexia, stomatitis, nausea, and vomiting.
4. Which deficiency in the mother has been primarily associated with neural tube defects in the fetus?
- A. Iron
- B. Folic acid
- C. Vitamin B12
- D. Vitamin E
Correct answer: B
Rationale: Folic acid deficiency in the mother has been primarily associated with neural tube defects in the fetus. Folic acid is crucial for the development of the neural tube in the early stages of pregnancy. Its deficiency can lead to neural tube defects, such as spina bifida or anencephaly. Iron deficiency is not directly related to neural tube defects but can cause other complications in pregnancy. Vitamin B12 is important for neurological function but is not the primary cause of neural tube defects. Vitamin E deficiency is not associated with neural tube defects in the fetus.
5. A patient asks a nurse the following question: Exposure to TB can be best identified with which of the following procedures?
- A. Chest x-ray
- B. Mantoux test
- C. Breath sounds examination
- D. Sputum culture for Mycobacterium tuberculosis
Correct answer: B
Rationale: The Mantoux test, also known as the tuberculin skin test, is the most appropriate and accurate test to identify exposure to TB. This test involves injecting a small amount of PPD tuberculin under the top layer of the skin, and a positive reaction indicates exposure to the TB bacteria. Choice A, a chest x-ray, is useful for detecting active TB disease but not exposure. Choice C, a breath sounds examination, is not a specific test for TB exposure. Choice D, a sputum culture for Mycobacterium tuberculosis, is used to diagnose active TB infection rather than exposure.
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