NCLEX-PN
NCLEX PN Exam Cram
1. 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.
2. Which of the following organs of the digestive system has a primary function of absorption?
- A. stomach
- B. pancreas
- C. small intestine
- D. gallbladder
Correct answer: C
Rationale: The small intestine is the correct answer. It is the primary organ responsible for absorption in the digestive system. The stomach's primary function is to break down food through mechanical and chemical digestion. The pancreas produces digestive enzymes to aid in the breakdown of food. The gallbladder stores bile produced by the liver, which helps in the digestion of fats. However, neither the stomach, pancreas, nor gallbladder play the primary role of absorption in the digestive process, making them incorrect choices.
3. At what age will vision be 20/20 in children?
- A. 4 years old
- B. 5 years old
- C. 6 years old
- D. 7 years old
Correct answer: C
Rationale: The correct answer is 6 years old. At this age, children typically have the potential for 20/20 vision. This is considered the standard age for achieving optimal vision clarity. Choices A, B, and D are incorrect as they are not typically associated with the age at which children achieve 20/20 vision.
4. The nurse is providing post-operative care to the craniotomy client. Diabetes insipidus is suspected when the client's urine output suddenly increases significantly. Which action takes highest priority?
- A. Continue to monitor urine output
- B. Check a pulse
- C. Check a blood pressure
- D. Check level of consciousness (LOC)
Correct answer: C
Rationale: The correct answer is to check a blood pressure. Diabetes insipidus can lead to dehydration and potential hypovolemic shock due to excessive urine output. Monitoring blood pressure is crucial to assess the client's circulatory status and detect signs of shock early. Checking the blood pressure will provide essential information on perfusion, which is vital in this situation. Continuing to monitor urine output, checking a pulse, or assessing the level of consciousness are important but not as high a priority as evaluating the blood pressure in a potentially critical situation like suspected diabetes insipidus.
5. The nurse teaching about preventable diseases should emphasize the importance of getting the following vaccines:
- A. human papillomavirus, genital herpes, measles.
- B. pneumonia, HIV, mumps.
- C. syphilis, gonorrhea, pneumonia.
- D. polio, pertussis, measles.
Correct answer: D
Rationale: Vaccines are one of the most effective methods of preventing and controlling certain communicable diseases. The smallpox vaccine is not currently in use because the smallpox virus has been declared eradicated from the world's population. Diseases such as polio, diphtheria, pertussis, and measles are mostly controlled by routine childhood immunization. They have not, however, been eradicated, so children need to be immunized against these diseases. Choices A, B, and C contain vaccines that do not protect against preventable diseases like polio, pertussis, and measles. Therefore, the correct choice is D.
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