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. A patient who has delivered an 8.2 lb. baby boy 3 days ago via c-section, reports white patches on her breast that aren't going away. Which of the following medications may be necessary?
- A. Nystatin
- B. Atropine
- C. Amoxil
- D. Lortab
Correct answer: A
Rationale: The patient is likely experiencing thrush, a fungal infection, which can present as white patches on the breast that persist. Nystatin is an antifungal medication commonly used to treat thrush. Therefore, the correct answer is Nystatin. Atropine is not indicated for this condition and is used for different purposes. Amoxil is an antibiotic and would not be effective against a fungal infection like thrush. Lortab is a pain medication and is not appropriate for treating thrush.
3. Why is starting a low CHO diet a contraindication for a client with renal insufficiency?
- A. As long as the client eats a minimum of 30g of CHO/day, there should be no problem.
- B. The client's clinical condition is a contraindication to starting a low CHO diet.
- C. Calcium supplements should be utilized to prevent the development of osteoporosis while on a low CHO diet.
- D. As long as the client eats foods that are high biologic protein sources, a low CHO diet can be followed.
Correct answer: B
Rationale: A client with renal insufficiency should not start a low CHO diet because it could result in an increased renal solute load. Clients with renal or liver disease require protein control in their diet to prevent complications. Proteins used must be of high biologic value, and protein intake is usually weight-based. Protein levels may be adjusted based on the client's clinical condition. A minimum level of carbohydrates is needed in the diet to spare protein. Vitamin and mineral supplements might be needed for clients with liver failure. The dietician plays a crucial role in calculating specific nutrient requirements for these clients and monitoring outcomes in conjunction with the healthcare team. Choice A is incorrect because simply consuming a minimum amount of carbohydrates does not address the issue of increased renal solute load. Choice C is incorrect as calcium supplements are not the primary concern when considering a low CHO diet for a client with renal insufficiency. Choice D is incorrect as the focus should be on the contraindication of a low CHO diet for a client with renal insufficiency rather than just high biologic protein sources.
4. The nurse is caring for a client with cirrhosis of the liver and suspects that the client may be developing hepatic encephalopathy. Which assessment by the nurse suggests that the client is developing this complication?
- A. Asterixis
- B. Hypertension
- C. Kussmaul respirations
- D. Lethargy
Correct answer: A
Rationale: Asterixis, also known as flapping tremors, is a characteristic sign of hepatic encephalopathy. It is a flapping tremor of the hands when the wrists are extended, indicating neurological impairment. Hypertension and Kussmaul respirations are not directly associated with hepatic encephalopathy. Lethargy is a common symptom but not a specific sign that suggests the development of hepatic encephalopathy.
5. Which statement best describes electrolytes in intracellular and extracellular fluid?
- A. There is a greater concentration of sodium in extracellular fluid and potassium in intracellular fluid
- B. There is an equal concentration of sodium and potassium in extracellular fluid
- C. There is a greater concentration of potassium in extracellular fluid and sodium in intracellular fluid
- D. There is an equal concentration of sodium and potassium between intracellular and extracellular fluid
Correct answer: A
Rationale: Electrolytes are distributed unequally between intracellular and extracellular fluids. Sodium concentration is higher in extracellular fluid, while potassium concentration is higher in intracellular fluid. Therefore, the correct answer is 'There is a greater concentration of sodium in extracellular fluid and potassium in intracellular fluid.' Choices B, C, and D are incorrect because they do not accurately describe the typical distribution of sodium and potassium between intracellular and extracellular fluid.
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