NCLEX-PN
NCLEX PN Exam Cram
1. 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.
2. Which of the following injuries, if demonstrated by a client entering the Emergency Department, is the highest priority?
- A. open leg fracture
- B. open head injury
- C. stab wound to the chest
- D. traumatic amputation of a thumb
Correct answer: C
Rationale: A stab wound to the chest might result in lung collapse and mediastinal shift that, if untreated, could lead to death. Treatment of an obstructed airway or a chest wound is a higher priority than hemorrhage. The principle of ABC (airway, breathing, and circulation) prioritizes care decisions. In this scenario, the stab wound to the chest poses the highest risk to the client's life as it can lead to severe complications such as lung collapse and mediastinal shift. Addressing this injury promptly is crucial to prevent further harm or potential fatality. Open leg fracture, open head injury, and traumatic amputation of a thumb, while serious, do not pose an immediate life-threatening risk compared to a stab wound to the chest.
3. Support systems during the grieving process include all of the following except:
- A. a despondent friend.
- B. a nurse.
- C. a social worker.
- D. a family member.
Correct answer: B
Rationale: During the grieving process, it is essential to have a support system in place. Options B, C, and D - a nurse, a social worker, and a family member, respectively, are individuals who can provide comfort, guidance, and practical assistance to someone who is grieving. However, a despondent friend, as stated in the question, is not an ideal choice for support during this period. A despondent friend is someone who is feeling extremely unhappy and discouraged, and may not have the emotional capacity to provide the needed support to a grieving individual. It is important for someone who is grieving to have support from individuals who can offer understanding, empathy, and strength, which a despondent friend may struggle to provide.
4. A one-month-old infant in the neonatal intensive care unit is dying. The parents request that the nurse administer an opioid analgesic to their infant, who is crying weakly. The infant's heart rate is 68 beats per minute, and the respiratory rate is 18 breaths per minute. The infant is on room air, and the oxygen saturation is 92%. The nurse's response is based on which of the following principles?
- A. Providing analgesia during the last days and hours is an ethically appropriate nursing action.
- B. Withholding the opioid analgesia during the last days and hours is an ethical duty because administering it would represent assisted suicide.
- C. Administering analgesia during the last days and hours is the parents' ethical decision.
- D. Withholding the opioid analgesia is clinically appropriate because it will hasten the infant's death.
Correct answer: A
Rationale: All patients, regardless of age, have the right to die with dignity and be free from pain. In this case, the parents' request for an opioid analgesic to relieve the child's distress aligns with the principles of palliative care and ensuring comfort. Assisted suicide involves a conscious decision by the individual, which is not applicable to a 1-month-old infant. Both the nurse and the parents have an ethical duty to ensure the infant's comfort and well-being. Withholding opioid analgesia solely to hasten death is not appropriate, as providing pain relief is a crucial aspect of end-of-life care. Opioids can be administered to dying patients at any age to alleviate suffering without the intention of hastening death. Therefore, providing analgesia during the last days and hours is an ethically appropriate nursing action. Choices B, C, and D are incorrect because the decision to administer analgesia in this scenario is based on the best interest and comfort of the infant, not concerns about assisted suicide or hastening death. The ethical consideration is to provide compassionate care and alleviate suffering.
5. What is the drug of choice for herpes simplex virus 1, herpes simplex virus 2, and varicella-zoster virus?
- A. HIV.
- B. HSV 1, HSV 2, and VZV.
- C. CMV
- D. Influenza A viruses.
Correct answer: B
Rationale: Acyclovir (Zovirax) is the drug of choice for herpes simplex virus 1 (HSV-1), herpes simplex virus 2 (HSV-2), and varicella-zoster virus (VZV) infections. It works by inhibiting viral DNA replication. Acyclovir is excreted unchanged in the urine, so caution is needed in renal impairment. Choice A, HIV, is incorrect as acyclovir is not the drug of choice for HIV. Choice C, CMV, is incorrect as acyclovir is not the preferred treatment for cytomegalovirus (CMV) infections. Choice D, Influenza A viruses, is incorrect as acyclovir is not used to treat influenza viruses.
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