NCLEX-RN
NCLEX RN Exam Review Answers
1. The nurse is caring for an infant with cryptorchidism. The nurse anticipates that the most likely diagnostic study to be prescribed would be the one that assesses which item?
- A. Babinski reflex
- B. DNA synthesis
- C. Urinary function
- D. Chromosomal analysis
Correct answer: C
Rationale: Cryptorchidism, also known as undescended testes, may be caused by hormonal deficiency, intrinsic testicular abnormality, or a structural problem. Diagnostic studies for cryptorchidism typically involve assessing urinary function because the kidneys and testes originate from the same embryonic tissue. The Babinski reflex is a test for neurological function and is not relevant to evaluating cryptorchidism. DNA synthesis and chromosomal analysis are not commonly used diagnostic tests for cryptorchidism, as they are unrelated to the disorder's etiology or presentation.
2. After an unimmunized individual is exposed to hepatitis B through a needle-stick injury, which actions will the nurse plan to take (select one that does not apply)?
- A. Administer hepatitis B vaccine.
- B. Test for antibodies to hepatitis B.
- C. Teach about alpha-interferon therapy.
- D. Give hepatitis B immune globulin.
Correct answer: C
Rationale: In the case of exposure to hepatitis B, the nurse should plan to administer hepatitis B vaccine to provide active immunity. Testing for antibodies to hepatitis B is essential to determine the individual's immune status. Giving hepatitis B immune globulin is necessary for passive immunity in cases of exposure. However, teaching about alpha-interferon therapy is not part of the standard management for hepatitis B exposure. Interferon therapy and oral antivirals are typically used in the treatment of chronic hepatitis B infections, not for prophylaxis after exposure.
3. 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.
4. A client is brought into the emergency room where the physician suspects that he has cardiac tamponade. Based on this diagnosis, the nurse would expect to see which of the following signs or symptoms in this client?
- A. Fever, fatigue, malaise
- B. Hypotension and distended neck veins
- C. Cough and hemoptysis
- D. Numbness and tingling in the extremities
Correct answer: B
Rationale: Cardiac tamponade occurs when fluid or blood accumulates in the pericardium, preventing the heart from contracting properly. This leads to decreased cardiac output and is considered a medical emergency. Classic signs of cardiac tamponade include hypotension (low blood pressure) and distended neck veins due to the increased pressure around the heart. These signs result from the compromised ability of the heart to pump effectively. Choices A, C, and D are not typically associated with cardiac tamponade. Fever, fatigue, and malaise are non-specific symptoms that can be seen in various conditions. Cough and hemoptysis are more commonly associated with respiratory conditions, while numbness and tingling in the extremities are neurological symptoms not typically seen in cardiac tamponade.
5. Which assessment information will be most important for the nurse to report to the healthcare provider about a patient with acute cholecystitis?
- A. The patient's urine is bright yellow
- B. The patient's stools are tan colored
- C. The patient has increased pain after eating
- D. The patient complains of chronic heartburn
Correct answer: B
Rationale: The correct answer is that the patient's stools are tan colored. Tan or grey stools indicate biliary obstruction, which requires rapid intervention to resolve in a patient with acute cholecystitis. This change in stool color is a critical sign that the healthcare provider needs to be informed about promptly. The other choices are less concerning and may be common symptoms in patients with acute cholecystitis, but tan-colored stools specifically indicate a potential serious complication that warrants immediate attention.
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