NCLEX-PN
NCLEX PN Exam Cram
1. What is one characteristic of human immunodeficiency virus (HIV)?
- A. The presence of circulating antibodies that neutralize HIV is evidence of exposure to HIV.
- B. HIV replication occurs intracellularly.
- C. HIV integrates its genetic material into the host cell's DNA.
- D. DNA replication is irrelevant to HIV.
Correct answer: C
Rationale: The correct answer is C. HIV integrates its genetic material into the host cell's DNA. The virus uses the enzyme reverse transcriptase to make a DNA copy of its RNA, which is then inserted into the genetic material of the infected cell. Choice A is incorrect because the presence of antibodies does not indicate immunity to HIV but rather exposure to the virus. Choice B is incorrect as HIV replication occurs intracellularly, inside the host cell. Choice D is irrelevant to the characteristics of HIV.
2. Which of the following symptoms is most characteristic of a client with lung cancer?
- A. exertional dyspnea
- B. persistent changing cough
- C. air hunger; dyspnea
- D. cough with night sweats
Correct answer: B
Rationale: The most characteristic symptom of lung cancer is a persistent changing cough. This cough may worsen over time and may produce blood-tinged sputum. Exertional dyspnea (Choice A) is more common in chronic obstructive pulmonary disease (COPD) due to airway obstruction. Air hunger and dyspnea (Choice C) are more typical of conditions like asthma. Cough with night sweats (Choice D) is commonly associated with tuberculosis rather than lung cancer.
3. 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.
4. A nurse working in a surgical unit notices a patient experiencing SOB, calf pain, and warmth over the posterior calf. All of these symptoms may indicate which of the following medical conditions?
- A. Patient may have a DVT.
- B. Patient may be exhibiting signs of dermatitis.
- C. Patient may be in the late stages of CHF.
- D. Patient may be experiencing anxiety after surgery.
Correct answer: A
Rationale: The correct answer is that the patient may have a DVT (Deep Vein Thrombosis). SOB (Shortness of Breath), calf pain, and warmth over the posterior calf are classic signs and symptoms of DVT. DVT is a serious condition where a blood clot forms in a deep vein, commonly in the legs. Choices B, C, and D are incorrect because dermatitis does not typically present with these symptoms, late stages of CHF would manifest with other signs, and anxiety after surgery usually does not produce these specific symptoms.
5. A nurse reviews the health history of a client who will be seeing the health care provider to obtain a prescription for a combination oral contraceptive (estrogen and progestin). Which finding in the health history would cause the nurse to determine that the use of a combination oral contraceptive is contraindicated?
- A. The client has type 2 diabetes mellitus.
- B. The client is being treated for hypertension.
- C. The client has been treated for breast cancer.
- D. The client has hyperlipidemia.
Correct answer: C
Rationale: The correct answer is that the client has been treated for breast cancer. Combination oral contraceptives containing estrogen and progestin are contraindicated for women with a history of certain conditions, such as thrombophlebitis, thromboembolic disorders, cerebrovascular disease, coronary artery disease, myocardial infarction, known or suspected breast cancer, known or suspected estrogen-dependent neoplasm, benign or malignant liver tumors, and undiagnosed abnormal genital bleeding. Although having type 2 diabetes mellitus, being treated for hypertension, or having hyperlipidemia are risk factors that require caution when using combination oral contraceptives, they are not absolute contraindications like a history of breast cancer.
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