NCLEX-RN
NCLEX RN Exam Review Answers
1. A patient asks the nurse why they must have a heparin injection. What is the nurse's best response?
- A. Heparin will dissolve clots that you have.
- B. Heparin will reduce the platelets that make your blood clot.
- C. Heparin will work better than warfarin.
- D. Heparin will prevent new clots from developing.
Correct answer: D
Rationale: The correct answer is D: 'Heparin will prevent new clots from developing.' Heparin is an anticoagulant medication that helps prevent the formation of new blood clots. It does not dissolve existing clots (choice A), reduce platelets (choice B), or necessarily work 'better' than warfarin (choice C) but rather functions differently. The primary action of heparin is to prevent the development of new clots, especially in conditions where clot formation is a concern.
2. A 34-year-old female has recently been diagnosed with an autoimmune disease. She has also recently discovered that she is pregnant. Which of the following is the only immunoglobulin that will provide protection to the fetus in the womb?
- A. IgA
- B. IgD
- C. IgE
- D. IgG
Correct answer: D
Rationale: IgG is the only immunoglobulin that can cross the placental barrier, providing passive immunity to the fetus. About 70-80% of the immunoglobulins in the blood are IgG. Specific IgG antibodies are generated after an initial exposure to an antigen, offering long-term protection against microorganisms. IgG antibodies are critical for protecting the fetus as they can be rapidly reproduced upon re-exposure to the same antigen. IgA is primarily found in mucosal areas, IgD is involved in antigen recognition, and IgE is associated with allergic reactions, but they do not provide the same level of protection to the fetus as IgG.
3. While caring for a patient with respiratory disease, the nurse observes that the patient's SpO2 drops from 93% to 88% while the patient is ambulating in the hallway. What is the priority action of the nurse?
- A. Notify the healthcare provider
- B. Document the response to exercise
- C. Administer the PRN supplemental O2
- D. Encourage the patient to pace activity
Correct answer: C
Rationale: The drop in SpO2 to 88% indicates that the patient is hypoxemic and needs supplemental oxygen when exercising. Administering PRN supplemental oxygen is the priority action to correct the hypoxemia and ensure adequate oxygenation during activity. Notifying the healthcare provider can be done after stabilizing the patient's oxygen levels. Documenting the response to exercise is important but secondary to addressing the immediate hypoxemia. Encouraging the patient to pace activity is not sufficient to address the acute drop in SpO2 and provide the necessary oxygen support.
4. A patient's nursing diagnosis is Insomnia. The desired outcome is: "Patient will sleep for a minimum of 5 hours nightly by October 31."? On November 1, a review of the sleep data shows the patient sleeps an average of 4 hours nightly and takes a 2-hour afternoon nap. What is the nurse's next action?
- A. Continue the current plan without changes.
- B. Remove this nursing diagnosis from the plan of care.
- C. Write a new nursing diagnosis that better reflects the problem.
- D. Revise the target date for outcome attainment and examine interventions.
Correct answer: D
Rationale: The correct action for the nurse in this scenario is to revise the target date for outcome attainment and reevaluate interventions. The initial desired outcome was for the patient to sleep for a minimum of 5 hours nightly by October 31. Since the patient is currently sleeping an average of 4 hours nightly and taking a 2-hour afternoon nap, the goal has not been achieved. By extending the time frame for attaining the outcome, the patient may have more time to progress towards the desired sleep duration. Additionally, examining interventions is crucial to identify any changes or adjustments that may be necessary to help the patient achieve the desired outcome. Continuing the current plan without changes is not appropriate as the goal has not been met. Removing the nursing diagnosis from the plan of care should only be considered when the problem is resolved. Writing a new nursing diagnosis is not needed as the current diagnosis of Insomnia still accurately reflects the patient's condition.
5. A healthcare professional is reviewing a patient's chart and notices that the patient suffers from conjunctivitis. Which of the following microorganisms is related to this condition?
- A. Yersinia pestis
- B. Helicobacter pylori
- C. Vibrio cholerae
- D. Haemophilus aegyptius
Correct answer: D
Rationale: The correct answer is Haemophilus aegyptius. Haemophilus influenzae biogroup aegyptius (Hae) is a causative agent of acute and often purulent conjunctivitis, more commonly known as pink eye. Yersinia pestis, Helicobacter pylori, and Vibrio cholerae are not associated with conjunctivitis. Yersinia pestis causes the plague, Helicobacter pylori is associated with gastric ulcers, and Vibrio cholerae causes cholera.
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