NCLEX-PN
Kaplan NCLEX Question of The Day
1. Which hormone is responsible for amenorrhea in the pregnant woman?
- A. Progesterone
- B. Estrogen
- C. Follicle-stimulating hormone (FSH)
- D. Human chorionic gonadotropin (hCG)
Correct answer: A
Rationale: Correct! Progesterone is the hormone responsible for amenorrhea in pregnant women. Progesterone plays a crucial role in maintaining the uterine lining for implantation and supporting early pregnancy. High levels of progesterone during pregnancy suppress the normal menstrual cycle, leading to amenorrhea. Estrogen, FSH, and hCG do not directly cause amenorrhea in pregnant women. Estrogen is involved in the development of female secondary sexual characteristics, FSH is involved in the growth and maturation of ovarian follicles, and hCG is produced by the placenta to support the production of progesterone during pregnancy.
2. Chemotherapeutic agents often produce a degree of myelosuppression including leukopenia. Leukopenia does not present immediately but is delayed several days or weeks because:
- A. the client's hemoglobin and hematocrit are normal.
- B. red blood cells are affected first.
- C. folic acid levels are normal.
- D. the current white cell count is not affected by chemotherapy.
Correct answer: D
Rationale: Leukopenia does not present immediately after chemotherapy because time is required to clear circulating cells before the effect on precursor cell maturation in the bone marrow becomes evident. Leukopenia is characterized by an abnormally low white blood cell count. The correct answer is D because the white cell count is not immediately affected by chemotherapy. Choices A, B, and C are incorrect as they pertain to red blood cells (hemoglobin and hematocrit), which are not directly related to the delayed onset of leukopenia.
3. High uric acid levels can develop in clients who are receiving chemotherapy. This can be caused by
- A. the kidneys' inability to excrete the drug metabolites.
- B. rapid cell catabolism.
- C. toxic effects of the prophylactic antibiotics given concurrently.
- D. the altered blood pH from the acidic nature of the drugs.
Correct answer: B
Rationale: The correct answer is 'rapid cell catabolism.' Chemotherapy leads to the destruction of cells, resulting in increased uric acid levels due to cell breakdown. Choice A is incorrect because the issue is not with the kidneys' ability to excrete the drug metabolites but rather with the cell breakdown. Choice C is incorrect as the question focuses on chemotherapy and its effects, not prophylactic antibiotics. Choice D is incorrect as the question pertains to the development of high uric acid levels, not altered blood pH from acidic drugs.
4. A month after receiving a blood transfusion, an immunocompromised client develops fever, liver abnormalities, a rash, and diarrhea. The nurse should suspect this client has:
- A. no relation to the blood transfusion.
- B. graft-versus-host disease (GVHD).
- C. myelosuppression.
- D. an allergic reaction to a recent medication.
Correct answer: B
Rationale: In this scenario, the symptoms of fever, liver abnormalities, rash, and diarrhea in an immunocompromised client a month after a blood transfusion are indicative of graft-versus-host disease (GVHD). GVHD occurs when white blood cells in donor blood attack the tissues of an immunocompromised recipient. This process can manifest within a month of the transfusion. While choices 1 and 4 are plausible, it is crucial for the nurse to consider the possibility of GVHD in immunocompromised transfusion recipients due to the significant risk. Myelosuppression, choice C, typically presents with decreased blood cell counts and is not consistent with the symptoms described. An allergic reaction to medication, choice D, would present with different manifestations such as itching, hives, or anaphylaxis, which are not described in the scenario.
5. Which type of cells secrete insulin?
- A. alpha cells
- B. beta cells
- C. CD4 cells
- D. helper cells
Correct answer: B
Rationale: Beta cells are responsible for secreting insulin. Insulin is produced by beta cells in the pancreas and plays a crucial role in regulating blood sugar levels. Alpha cells secrete glucagon, not insulin (Choice A). CD4 cells are a type of immune cell that helps coordinate the immune response (Choice C). Helper cells are a type of immune cell that aids in activating other immune cells (Choice D). Therefore, the correct answer is beta cells.
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