NCLEX-RN
NCLEX RN Exam Review Answers
1. As a nursing supervisor in a long-term care facility, you prioritize strict infection control prevention measures due to the understanding that the normal aging process weakens the body's defenses. Which theory of aging supports the necessity of strict infection control prevention measures?
- A. The Programmed Longevity Theory
- B. The Immunological Theory of Aging
- C. The Endocrine Theory
- D. The Rate of Living Theory
Correct answer: B
Rationale: The theory of aging that aligns with the need for strict infection control prevention measures is the Immunological Theory of Aging. This theory posits that aging leads to a decline in the body's immune defenses and a reduced ability of antibodies to protect against infections. The other theories do not directly address the impact of aging on the immune system. The Programmed Longevity Theory focuses on genetic changes affecting aging, the Endocrine Theory emphasizes hormonal changes, and the Rate of Living Theory relates longevity to the rate of oxygen metabolism.
2. Which of the following is a true statement about assessing blood pressure by palpation?
- A. Only the diastolic blood pressure can be assessed through palpation.
- B. The palpation technique is most useful for infants and small children.
- C. Hypertension is a common condition that might need to be assessed through blood pressure palpation.
- D. Only the systolic blood pressure can be assessed through palpation.
Correct answer: D
Rationale: When assessing blood pressure by palpation, it is important to note that only the systolic blood pressure can be determined accurately using this method. Diastolic blood pressure cannot be reliably assessed through palpation. The palpation technique is particularly useful in situations where traditional blood pressure measurement methods are challenging, such as in infants, small children, or individuals with low blood pressure that is difficult to hear. Hypertension, a common condition characterized by elevated blood pressure, is typically assessed using auscultation rather than palpation. Therefore, the correct statement is that only the systolic blood pressure can be assessed through palpation.
3. A patient born in 1955 had hepatitis A infection 1 year ago. According to Centers for Disease Control and Prevention (CDC) guidelines, which action should the nurse include in care when the patient is seen for a routine annual physical exam?
- A. Start the hepatitis B immunization series.
- B. Teach the patient about hepatitis A immune globulin.
- C. Ask whether the patient has been screened for hepatitis C.
- D. Test for anti-hepatitis-A virus immune globulin M (anti-HAV-IgM).
Correct answer: C
Rationale: The correct action for the nurse to include in care when the patient is seen for a routine annual physical exam, according to CDC guidelines, is to ask whether the patient has been screened for hepatitis C. CDC guidelines recommend screening patients born between 1945 and 1965 for hepatitis C due to the high prevalence of undiagnosed cases in this age group. Starting the hepatitis B immunization series is not necessary as the patient already had hepatitis A infection. Teaching the patient about hepatitis A immune globulin is not indicated in this scenario. Testing for anti-hepatitis-A virus immune globulin M (anti-HAV-IgM) is not needed as the patient has already had hepatitis A.
4. A client is seen in the emergency room as a victim of suspected domestic violence. The nurse's aide brings the client to a center curtained area, gives her a gown to change into, and asks her to wait for the nurse. What is the most appropriate action of the nurse upon arrival?
- A. Ask the client to undress to assess for injuries
- B. Take the client into a private room
- C. Notify the police to file a report
- D. Notify the house supervisor to keep security on alert
Correct answer: B
Rationale: When dealing with a client suspected of domestic violence, it is crucial to provide privacy and a safe environment. Taking the client into a private room allows for a confidential conversation and assessment without compromising the client's safety or dignity. The nurse should prioritize creating a safe space for the client to share information and receive support. Notification of authorities should only occur once a thorough assessment has been conducted to ensure the client's safety and well-being. Option A is incorrect because asking the client to undress should be done with sensitivity and respect for the client's privacy, focusing on assessing injuries rather than visualizing them. Option C is premature as involving the police should be based on a comprehensive assessment and the client's consent. Option D is not the most immediate and direct action required to address the client's immediate needs in a suspected domestic violence situation.
5. A client with asthma is being admitted for breathing difficulties. His arterial blood gas results are pH 7.26, PCO2 49, PaO2 90, and HCO3- 21. Which of the following best describes this condition?
- A. Uncompensated respiratory acidosis
- B. Compensated respiratory alkalosis
- C. Uncompensated metabolic acidosis
- D. Compensated metabolic alkalosis
Correct answer: A
Rationale: In this case, the client's arterial blood gas results show a pH of 7.26 and a PCO2 of 49, both of which are abnormal. A pH below the normal range of 7.35-7.45 indicates acidosis. The elevated PCO2 of 49 mmHg suggests respiratory acidosis as the primary issue. The normal range for PCO2 is 35-45 mmHg, so a value of 49 indicates the retention of excess CO2, leading to acidosis. The low HCO3- level of 21 also supports the presence of metabolic acidosis; however, the primary abnormality is respiratory, making this an uncompensated respiratory acidosis. Therefore, the correct answer is 'Uncompensated respiratory acidosis.' Choice B, 'Compensated respiratory alkalosis,' is incorrect because the client's pH is acidic, not alkalotic. Additionally, there is no compensation occurring for the primary respiratory acidosis indicated by the elevated PCO2. Choice C, 'Uncompensated metabolic acidosis,' is incorrect because while the HCO3- level is low, the primary issue indicated by the elevated PCO2 is respiratory acidosis. Choice D, 'Compensated metabolic alkalosis,' is incorrect since the arterial blood gas results do not support a metabolic alkalosis. The low HCO3- level would typically be seen in metabolic acidosis, but in this case, the primary issue is respiratory acidosis.
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