NCLEX-PN
Quizlet NCLEX PN 2023
1. What is the best lab test to diagnose disseminated intravascular coagulation (DIC)?
- A. platelet count
- B. prothrombin time (PT)
- C. partial thromboplastin time (PTT)
- D. D-dimer
Correct answer: D
Rationale: The best lab test to diagnose disseminated intravascular coagulation (DIC) is the D-dimer test. In DIC, numerous small clots form throughout the body and are rapidly broken down. D-dimer measures a specific fibrin split product and is the most specific test for DIC. Platelet count (Choice A) is decreased in DIC due to consumption, but it is not specific for diagnosing DIC. Prothrombin time (PT - Choice B) and partial thromboplastin time (PTT - Choice C) are both elevated in DIC because clotting factors have been used up, but they are not specific for DIC as they can be elevated in other conditions as well.
2. In Parkinson's disease, a client's difficulty in performing voluntary movements is known as:
- A. Akinesia.
- B. Dyskinesia.
- C. Chorea.
- D. Dystonia.
Correct answer: C.
Rationale: In Parkinson's disease, the client's difficulty in performing voluntary movements is termed dyskinesia. Dyskinesia refers to the impairment of the ability to execute voluntary muscle movements. Akinesia, on the other hand, refers to the absence or lack of voluntary movement. Chorea is characterized by involuntary, rapid, irregular movements. Dystonia involves sustained muscle contractions resulting in abnormal postures or twisting movements. Therefore, dyskinesia is the specific term used for the described difficulty in Parkinson's disease.
3. A client has a 10% dextrose in water IV solution running. He is scheduled to receive his antiepileptic drug, phenytoin (Dilantin), at this time. The nurse knows that the phenytoin:
- A. is given after the D10W is finished.
- B. should be given at the time it is due in the medication port closest to the client.
- C. can be piggybacked into the D10W solution now.
- D. is incompatible with dextrose solutions.
Correct answer: D
Rationale: Phenytoin is incompatible with dextrose solutions as they will precipitate when mixed together. Therefore, it should not be piggybacked into the D10W solution or given through the same port. Instead, normal saline should be used to flush before and after administering phenytoin to prevent any interaction with the dextrose solution. Delaying the administration of an antiepileptic drug like phenytoin to maintain therapeutic blood levels is not recommended, so it should not be given after the D10W is finished or based on the medication port closest to the client. Choice A is incorrect because administering phenytoin after the D10W is finished is not the correct approach due to the incompatibility with dextrose solutions. Choice B is incorrect as the timing of phenytoin administration should not be based on the medication port closest to the client but on compatibility considerations. Choice C is incorrect as piggybacking phenytoin into the D10W solution is not advisable due to the incompatibility issue.
4. A client with sickle cell disease is worried about passing the disease on to children. Which of the following statements by the PN is most appropriate for this client?
- A. "You should discuss the inheritance risk with your physician."?
- B. "Sickle cell disease is genetically based and might be passed on to children."?
- C. "Sickle cell disease is genetically based and is not passed on to children."?
- D. "Sickle cell disease is caused by an infection and cannot be passed on to children."?
Correct answer: B
Rationale: A client with sickle cell disease has a genetic condition that can be passed on to their offspring. The most appropriate statement for the PN to provide is to acknowledge this fact and inform the client that sickle cell disease is genetically based and might be passed on to children. This empowers the client with accurate information. Choice A has been refined to emphasize discussing the inheritance risk, making it a better option than the vague original choice. Choices C and D provide incorrect information. Sickle cell disease is indeed genetically based and can be inherited.
5. A patient has fallen off a bicycle and fractured the head of the proximal fibula. A cast was placed on the patient's lower extremity. Which of the following is the most probable result of the fall?
- A. Peroneal nerve injury
- B. Tibial nerve injury
- C. Sciatic nerve injury
- D. Femoral nerve injury
Correct answer: A
Rationale: The correct answer is peroneal nerve injury. The head of the proximal fibula is in close proximity to the peroneal nerve, making it susceptible to injury when there is a fracture. The peroneal nerve runs along the fibula and can be affected by trauma to this area. Choice B, tibial nerve injury, is incorrect as the fracture site is closer to the peroneal nerve, not the tibial nerve. Choice C, sciatic nerve injury, is incorrect as the injury is more localized to the fibular head area where the peroneal nerve is affected. Choice D, femoral nerve injury, is incorrect as the femoral nerve is not immediately adjacent to the proximal fibula and is not typically affected by this type of injury.
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